Well friend's friend is selling his 89 white non-turbo supra for 600. He says the only thing wrong is a piston ring needs to be replaced and that once i replace it, everything should be fine. He has adjustable coilovers, intake, exhaust and new brake kit and also stock clutch with 120kl miles on it. Do you think this is a good offer or will that missing piston ring be a massive problem in the future? What do you think?