I have a stage III 91 tt... I bought it last year for 17k with only 59k miles on it. I have spent an additional 3-4k on upkeep and basic maintenance. 4 or 500 on 60k mile maint. package, performance tires 800. aftrmrkt hks ss bovs. stillen front end repainted, ect. I would also have it taken to a mechanic who knows his stuff on cars to make sure there arent any problems with the bovs. if the cars bean beaten you might have to replace them.. or unproper oil changes ect. I wish I wouldnt of spent 17k on mine.. I should of kept looknig around, but i was eager to get a Z badly.. GL with your choice