Marlin also made a camp .45 that takes 1911 mags, which come in a 7-round capacity. You can also adapt the Hi-Point .45 to take 1911 mags but those have PG's which somehow makes them so much more deadly. It's a good thing you live in NY so you don't have to worry about those dangerous pistol grips or shoulder things that go up.
Maybe get a lever action .357. Aren't those exempt for a 7 round limit?
I don't collect guns, I accumulate them.