H22 Question

Planning on replacing my H23 for an H22. I have 4WS in my lude right now, and I want to keep it. I tried to find out if there were any H22 4WS ludes, but didn't have that much success. I found this:

http://www.carsurvey.org/review_31898.html

Are there any ECUs for this kind of swap? One that controls the VTEC and the 4WS? or is the 4WS controller independent of the ECU? That would be great if it was. My fingers are crossed.

Also, how different are the wiring harnesses between the H22 and the H23?