So I have two '72 mach 1's, one is a rolling chassis (green), the other is just a shell with a buttload of parts. The problem is the rolling one is an infestation of rust and holes but I have a title for it. The other is in great condition except surface rust but no title. Do I cut pieces from the one to patch the holes. Or do I use all good parts with good body and go through a long vin/ retitle thing?