I decided to go with real fastback inner structure on this car. I was originally going to just make the inner panels like I normally do but I want this car to be as if ford motor company built it. the parts used on this car can be purchased at most any classic mustang supply company. parts used for the conversion are fastback full quarters fastback roof skin rear roof brace fastback filler panel. fastback rear upper panel fastback drip rails fastback trunk corners and fastback inner structure unwelded versions.