I wouldn't be that negative on Goodmark stuff, those parts are million times better than patched rotten rusted junk , I'm working on heavily rusted out 55 Porsche 356 Speedster,some of the structural parts simply can not be bought,even rear seat areas that are the first to rust, I would be very happy if I could get theese replacement parts even if they were not that great fitting and needed some extensive work to fit,but since they are not avaliable, I have to start from scratch handform ,english wheel,bead rolling,e.t.c, it takes countless hours to make parts like that from scratch by hand,but then again ,theese are quarter million $$$dollar cars,so if you own one,you know it won't be cheap to restore it