i am buying a 67 malibu 2dr hardtop factory bech seat 4spd 12 bolt posi and a 67 malibu convert factory bench seat 4spd 12 bolt problem is the motors and trans are missing out of both and front end sheet metal are gone.i have known for a long time and the rears were not added to them.i was wondering if there are little things to look for in case they were L-79's? thanks