Donutblue, here's a link that might be helpful:
http://www.planethoustonamx.com/just%20s..._swap_meets.htm
Also, the Mopar Nationals include AMC cars.
Come to Ohio for the AMC Nats in Dayton.

You should get plenty of help from these guys, as they are true brand fanantics.
When they had the Nats in Columbus a few years ago, I saw a concourse resto of a base, no option Gremlin. That is true love.

(Easier to find parts, maybe

).
If nothing else, the Air Force Museum is awesome, and free!