Stick with it or scrap it..?

Stick with it or scrap it..? - General Mechanical Advice

I’ve been working on my 81 Datsun 280zx for a while now and just found more rust and in the worst spot around the windshield, top and bottom and bad. My options are either cut out the sections and have a body guy build these 2 sections from scratch or scrap the the rusty body and pull the running gear and stick it in an old corolla wagon..? (Datsuns are over priced for rust and Toyota is just better). Shoot me some opinions and any body guys that could give a rust estimate on building these sections of rust feel free to input.