You have a few options, depending on how much money you have:
1) buy huge acreage and build whatever house you want. I personally would minimize the house and maximize the land if I had to cut something.
2) buy huge acreage with a house on it already.
The above depends on whether or not you can or want to live rurally. The more you live off grid the more options you have as far as acreage size. If you have the money to solar/PV and you can get huge land. The whole point is the more rural you are and the more land you have the more you can shoot without people hearing you at all or at least without hearing your shots loud enough that it bugs them. I would just tell your neighbors, no matter how far they are, that you shoot/hunt, and also call the police station and tell them you're plinking, so if they do get calls they till legally have to send police to investigate but the guys that go won't be so concerned about really finding you.
I spoke to a Sargent who patrols in my area and asked him about all this.
He said:
1) if they get a call they have to investigate. That's the protocol.
2) they will drive down the road where people reported they can hear shots but they dont drive down long easements to investigate unless they hear screaming or other indications something nefarious is going on.
3) even if they do drive down a long easement to get to the neighbors house who shares your easement and who who made the call, they will not penetrate your property to find out exactly where you are. They do not go hiking into acreage to find who's shooting.
4) the law states you can't discharge a firearm in a residential area. Of course I asked....he said a residential area is defined per the officers discretion. There is no official definition and it is independent of the zoning of the property. In other words if youre shooting on a 10 acre parcel zoned as AG land, but you're too close to you're neighbors house or a county road, the office can cite you for shooting in a res area.
5) if you do get cited by an officer who's just being a dick, the case goes to the county prosecutor who decides whether to bring a case on you. He said no prosecutor has ever done this, and for the record, he's never heard of an officer citing anyone for plinking/shooting
6) he said use discretion. Depending on the size of the lot, proximity of neighbors and roads, certain calibers and amounts of shooting would be smarter. In other words, if you have a small lot with close neighbors, don't go rapidly blasting 100s of rounds from your m4.
7) he said be smart too: dont ever chance even a ricochet going on a neighbors property. Try to build a simple even small berm so of they investigate they know you're being smart. Also fire away from people and roads of course - even of you know the trajectory would put the bullet in the ground long before it got near a neighbor or road, don't do it.
As an example, I have a spaghetti lot: 17 acres but its about 500x1800 feet. And it's backed by forest reserve and vacant land on either side. My house is on the front of the property. I also drive a 1800' easement to get to it so I'm that far from the county road. And I have only one neighbor about 500' from my house on an identical lot and their house is analogously situated on their property. So when I'm in the back of my property as far as the county road and my neighbor is concerned, I'm in the middle of nowhere - and I don't have a big remote lot at all. So I text my neighbor when the 'range' is going hot so they don't care. There's even a cop with kids that lives on a parcel on the road just in front of my Parcel, and I informed him to.
Remember you can also, as many people do, live in a town with people and amenities but you have the money to by land as well, then do that. You can have it both.
Buying big land and living on it cuts the property taxes by more than half, whether you claim it as residential or agricultural. But even if you don't live on the land, the taxes aren't a killer cause the tax assessed value of land the county uses is a third of what the real estate market value is. $5.55 per thousand dollars of assessed value is the county's current rate so a 100acre parcel would be $555/year if it was assessed at 100k but from my experience a hundred forested acres in a rural area with no structure on it and no utilities running into it (even if all utilities are on the road) would be assessed at maybe 60-80k. So if you have the money to buy in town but also own a big parcel, you could plink, hunt, camp...whatever. Have your own getaway.
For the record big land that is mostly or partially cleared with deep soil and grassy is more expensive but big land that is forested is drastically cheaper.
There are a few private ranges here for the record. Cheap for the one I belong to. GRA. glenwood range association. About 50$ a year.
Boring in Hawaii? Don't know what that means. I dive and there are endless boat and shore dive locations for reef, wall, and lava tube/cave diving, and diving lava entering the ocean when it often does. If youre in shape there are endless opportunities for hiking and camping, climbing mauna loa, mauna kea, hualalai and kilauea volcanos. Hiking and camping the valleys in kohala which can take days/overnight. Got offroading, lava hikes, caving, hunting. Not to mention countless remote prehistoric Hawaiian archeological sites - not just the touristy ones- ones born and raised locals and even Hawaiians dont even know exist. And if when you get tired of living adventure all the time, and you're smart enough to buy land/home where there's nothing but birds and trees around you, and not a sound or site of any other human being, you stay home and bathe in the peacefulness.
Here's the bad part, so you aren't disillusioned:
1)This place is a cesspool of liberal hippie transplants from the west coast; homeless people, vagrants, welfare parasites from the mainland 'inner cities' who have started coming here like a plague of locusts since Obama became president and he and the state of HI expanded handouts and removed restrictions and requirements for existing ones; and welfare section 8 families and individuals that are literally flown here via tax dollars from the mainland so they can suckle at the giant Hawaiian teet that feeds every leech who comes here to live off the best welfare system in the country. The violent and petty crime rate has and will continue to irreversibly and linearly increase with this emigration - believe it or not kona is infested with illegals from Mexico - thanks politicians!
2) you'll get driven nuts by the fact that the vast majority of locals live under a conservative or libertarian belief system (gun owners, hunters, private property rights, despise intrusive local gov and taxes, traditional values -not the younger generation, religious or spiritual) but consistently vote for dems in local and national elections cause they know nothing about dem/lib/prog/socialist ideology vs rep/conserv/libert/constitutionalism
3) this island is rapidly changing for the worse due to all the negatives associated with liberal policies because the puke libs come here and infect locals with their ideology so that the effect is pervasive and insidious; to be seen in state and county agencies and hospitals to the extent that you'd swear people are actually going nuts.
4) local politicians at all levels are driven like mindless automatons to develop the state until there isn't a blade of grass left so the big island will be honolulu in 20years. They just keep allowing building and developing like they can say no. They won't stop....EVER! Because of this, roads are becoming to few and too small, traffic increases, people are starting to drive with the manners of someone on a freeway in LA who's late for work.
Ahhh.....the bliss of "paradise"...