Patriot1970, if your definition of auto paint is paint purchased at an auto body supply and is applied with a spray gun and not the auto paint in spray cans sold at parts stores you should be all right. Just tell the paint jobber what your doing and they should be able to get you setup. I have painted countless fabric covered models with PPG with excellent results. Gets a little expensive but it's about the most durable paint you'll ever need on a model. No problems with cracking, chipping or peeling and methanol, nitro or gas seem effect it.
2 Piece