Well what all does the motor come with? I've seen motors come with hoses, lines, air tube etc. That stuff adds up. If you were really trying to do it the cheapest possible then you could probably get away with doing it for around $1500. To do it you could forget the performance upgrades, modify your own harness, tune it yourself, make your own adapter plates, sacrifice A/C, and steal all the new fluids. But probably you are going to have to buy or source out most or all of that.