I have a chance to get back my brothers 1966 cutlass supreme convertible and it has been sitting along time - Will doors from a 1966 cutlass hard top work, what about whole qtr panels,
I realize the coupe cars have window frames. Not sure what a hard top without window frame models are called.

 

The hardtop doors and lower quarters will easily work on a convertible. Obviously the sail panel areas of the rear quarter aren’t on a convertible..