would suggest a mk3 supra turbo find on for under 1g with a bhg. Take another grand do a stock rebuild good for 500hp just make sure to use a metal headgasket and arp studs .Thats leaves you with 3 grand to put a bigger turbo,coilovers and replacement parts pretty much what ever floats your boat. Not to many people are saving these cars so you won't see many nice ones around