I have an 86 base model /w an s4 turbo swap that is quite rusty. I was thinking about picking up a shell and having it painted then moving everything over from the s4 but the only problem is the shell is an s5 so im wondering what all i can keep from the s5 (wiring, body panels, gauge cluster)? Any other comments to concider would be fantastical!

The shell has full interior and and the body is pretty straight /w no rust at all so IDK?