You could buy either obd1/2 engine and just transfer your ancillaries over. My vr had the 16(?) pin diagnostics port, was obd1, square indicators, an coilpack. It was a late obd1. Yours sounds like an early obd2, do you have a 4 or 6 pin MAF - the plug on the black cylindrical thing before the plastic intake elbow? Oh, welcome to the site! Get some pics up fella!