I found a 82 240D close to where i live, but they say its got a noise in the engine, with the miles on it probably needs a rebuild or a used engine, would it be work wile to buy this car and fix it I have never owned one of these cars just the engine that Im putting in my jeep what should I look for when I do go look at it, the guy hasnt gotten back to me yet so Im not sure if he still even has it but just to know what to look for