Brandon is on
http://www.glamisdunes.com and he has a screen name of Kraut_n-Rice. He charges $650 for the harness and provides the computer. The computer I have is from a 99 Integra I think. I didn't buy from Brandon because I found a deal "used" but never installed from another person. Brandon is in Phoenix, I think, and will answer all your questions. He returns calls quickly and knows his stuff. 480-570-0743
Casey at 702-845-6750 goes by jse4golf on
http://www.glamisdunes.com. Casey built my harness. He used to build a lot of them and specialized in Honda swaps at his shop, Southwest Performance (I think). Now he specializes in side by sides, like Rhino and razors. He will still builds the harnesses. He doesn't modify a factory harness he builds a new harness using the connectors. It is a very nice harness and he also charges $650.
Both of the setups require minimal wiring. A relay for the fuel pump, relay for the fans, a tach wire if you have one, a low oil pressure light if you have one, a couple power leads- switched and unswitched.
This was a very easy install and the only thing most will struggle with is fitting the intake and water ports into the frame since they go out the back. Intake can be flipped to face the back of the frame with a little work.