I don't think anyone wants to rain on your parade, just be aware of pitfalls that will show up as you get into it.
You will have to obtain a good roof. Someone has to get off the donor some way, and the spot welds on the donor roof will have to be drilled out before you can be it of course. (how many?? I would guess 60). Then remove the rusted roof, and go from there. All rust on this puppy will have to either cut out, sanded off / ground off, then the pitted metal needs to be acid washed to kill the rust in the pits, ( unless it was sandblasted in which case you would have little left.....use weld thru primer, epoxy primed, etc etc.... )
But you are saving another old Mopar, that's great! And learning some great skills along the way. Keep us informed.
