Many people have done this swap. Check Advanced Adapters for cost if you can't make your own mods. From what I understand it's a pretty straight forward swap. It is costly as are almost all engine swaps. You will probly find that most engine swaps in a jeep include chevy engines. That's a good engine for jeep because they are cheaper to run than most other engines. Atleast most parts are cheaper because of availability. I think the engine of coarse and computer, bellhousing, exhaust, better shocks, and springs possibly. You would be very happy with the results though. It's worth the money.