Looking to borrow or to rent a set of go or no go gauges for a AK74 545x39

Im no expert and there are people who would frown on me for saying this, but in regards to com-bloc headspacing its my OPINION that you can get away with using scotch blue masking tape on a live round. Step 1 take out your firing pin (a safety measure to avoid ND) step 2 take a live round and use the case rim as a stencil to cut out a piece of tape(one piece of tape usually =.004 +,- .0008 if you have a mic you can double check) keep adding a piece of tape until the bolt wont close with reasonable force.

Im no expert and there are people who would frown on me for saying this, but in regards to com-bloc headspacing its my OPINION that you can get away with using scotch blue masking tape on a live round. Step 1 take out your firing pin (a safety measure to avoid ND) step 2 take a live round and use the case rim as a stencil to cut out a piece of tape(one piece of tape usually =.004 +,- .0008 if you have a mic you can double check) keep adding a piece of tape until the bolt wont close with reasonable force.

I'm also by no means an expert with AKs, but the about is close to what my understanding is. 

Mostly what I've been told for AK maintenance and tweaks varies from "just shoot it" to "what is headspace". 

Mostly what I've been told for AK maintenance and tweaks varies from "just shoot it" to "what is headspace". 

Definitely for AK47, but AK74 might be a diff story.