I just talked to the guy who's going to do my harness. He's from Speartech. He said it's as simple as putting a 99-02 throttle body on it and using an ECM from a 99-02 vehicle.
That's easier than I had thought.
Talking to him on the phone has be pretty anxious about if I'm going to be able to hook all the electronics on this motor up correctly, but I've heard people in the past say it's pretty much foolproof. I guess I'll attempt to prove them wrong.