This is my first time on the forum so thanks for helping me out. So I need some advice; my neighbor is selling his Datsun 280Z for $1,500, but obviously it had some major problems. He said the air conditioning and speedometer are broken and the engine stalls often and sometimes makes a popping sound. Is it still worth buying? How much do you think the repairs cost. I don't care that much about the AC but the engine and other problems are concerning.