Hey guys, thanks for the responses.
Just for the record, no, I wouldn't offer him $20k for it. I was thinking $15k or so, max. I know mine would sell for about $18k in my area, so the rest of that could go into fixing up whatever needs fixing or whatever.
Also, I'm not in love with absolutely everything on that car. I'd probably swap his setup and tune for something, part with the wheels and change some stuff up. I think I mainly want it for the money I'd save working on
my car. $25k-$30k on top of my own vehicle, or about $5k-$10k for modifying his?
Maybe I'm being too naive though haha