I apologize if this is a duplicate, as I am unsure how and where to post on the site. I recently purchased an all original 65,000 mile 77 Z28 that has been in storage since 1991. The drivetrain is numbers matching, and the paint and interior are original. I have the original build sheet in great shape.The interior is perfect with all the pieces intact and no dash rust. Trunk has original spacesaver and inflator. Frame rails have no rust and the floorpans under the carpet look perfect. The paint and stripes appear original but have much patina, but no rust. My thoughts are to keep this car as original as possible and would appreciate input from members. The motor and transmission are number matching but not in the car currently. Previous owner pulled them to build race car in 1991, but never got past pulling the motor. Since it is out, I have degreased the motor and ordered all new parts such as waterpump, carb gasket, plugs, cam/lifters, gasket set and timing chain set. I am also replacing the heater core and all hoses and belts. I have already replaced the sagging rear springs and complete brake system. Gas tank was removed and flushed and rubber line replaced. My questions is should I freshen the engine compartment (wheelwells, master cylinder, )etc while motor is out, or leave it with surface rust? Am I better off leaving paint and underhood as is except replacement parts, or should I do a full resto including underhood and paint, or some sort of combination. All thoughts and input are appreciated.