hey all, 81 280zx owner here, she was in pretty ruff condition but almost rust free, just the spare tire well was an issue, the floors and under carraige are rust free. She has a lot of miles, over 358K so far, but she runs great and does not smoke, so it is possible the engine has been rebuilt, but so far I haven't any proof of that. So far I have replaced most of the bushing front and back, but still have to do the 4 control arms. I have replaced a lot of the interior with z31 parts, carpet , seats , center console. Still a long ways from where I want to be, but she is a DD now and fun to drive.