With enough time, money, and effort, yes, anything is repairable.
Again, what percentage or original steel must replaced for a car to be considered a rebody? 1%, 10%, 75%, 95%, where is this line drawn?
Do replacement parts have to be from the OEM supplier or can they be aftermarket? Is my car more correct if I use NOS quarter panels which never came on it or aftermarket replacement panels that never came on it? Must I used all original parts, can I use any aftermarket parts?
Looking at the picture posted up on page 1, it is entirely possible the floorpans, frame rails, firewall, cowl, inner fenders and radiator support were salvageable. That would leave the roof, pillars, quarters, doors, trunk, hood, and fenders as replacements. Aside from the roof and pillers, I'm sure there are cars on here that have had that much metal in them replaced. With 80% of the VISABLE sheet metal replaced, are these cars considered a rebody? We see these types of cars advertised all the time as restored cars. If the structural parts are cut out and replaced with coil overs, ladder bars, aluminum panels, and a roll cage, is it still a Cuda? We see these cars for sale regularly also being sold as Cudas. Are they really?
Without any other pictures or additional information, we are all just guessing as to how much was actually saved or trashed.