And are looking for a G20 ECU, I found one, it's in Atlanta. It's at this place called:
Pull-A-Part
4416 BUFORD HWY, NORCROSS, GA 30071
Phone: (770) 242-8844
It's a 1995 Infiniti G20t, (seats are gone, nice thought though

) 5-spd, which means limited slip, and the ECU was still there. They have really good prices. They do ship. It was on row 47, car 2 if that helps.
I'm not exantly sure on what he would want for it, but I got a ton of crap for $12.
Hope I helped.
--Garrett