I was just looking at an upcoming 1911 hi cap that the manufacturer told me wouldn't be available in 10rd mags, from them, at least. They weren't interested in a "version" for restricted states since the only change was mag capacity, leaving it up to the buyer to figure out.
... just have them blocked before you reassemble them and it should be fine
"It should be fine" would be dependent on
how they are blocked, it seems, and open to interpretation.
If they can be "readily restored" (no standard for that is given) to high cap, you would be in violation of 134-8 (c)

A home grown solution vs using a manufacturer's blocking device/s for the mags may be the difference between "you are fined" and "you are fine". Being caught "inserted" vs "pulled out" is also the difference between oops and jail.

(Semi-off-topic, but related: Thanks, State Leg, for the continuing dim output; that's one way to keep Hawaii in the Dark Ages. The "grey area" and broadness in so many of our laws really sucks, and in my opinion only serves as a tool to punish the citizens since interpretation is very subjective and never in our favor, yeah.)