Brian gregg

I am restoring a 65 mustang coupe. Passenger side sail panel is in bad shape. Also a few really bad spots on rain gutters. Have been trying to find used parts with no luck. A place called metro sent me some picks but tired of begging them to return calls and sell me parts. Mustang masters in Jacksonville has the parts but they are not much better than what I have now and he wants top dollar. Any suggestions?