I'm ready to buy a pristine 92 Diablo from a private party. Last month dealer put in a new clutch. Car has full records. I have 3 questions for Diablo owners: 1) What specifically should I look for during PPI? I know issues are clutch, head gasket, electronics. Anything else do keep any eye out for in early model cars? 2) What's an average cost of 30K service and what is done? For example, on a 355 it's an engine out belt change - dealer about 7K, independent 4.5K. So, assuming nothing else is discovered, what's an average major service? 3) Availablility of parts? I saw in another site where a guy with a 97 Diablo could not find an intake manifold, even from the dealer. Any difficulty with parts? I've scheduled PPI for this Wed (Dec 8). Any advice you can comment on would be welcomed and appreciated. Thank You.