I had issues as well and eventually with time it became easier. The door issue is kinda worrisome though I would call classic and tell them if nothing else let them know how you feel! I just got my latest catalogue a few weeks ago with even higher prices!!!
86 Pontiac 2+2 69 Firebird Coupe(Under Construction) 69 Firebird 4 speed Vert Driveable but Under Construction 64 1/2 Mustang (Under Construction) 86 Z28 Convertible Weekend driver