Good job Mayor. I've found lots of very knowledgeable people and valuable threads on this site. Yours will also be a good project to follow. Besides what Buster said above, there are some other subtle changes between years, as I'm finding. Like that a/c compressor mount, alternator terminals, fuel pump relay amperage change,... relatively minor, ...that's all I can recall for now. As Buster suggested a wiring harness change, you may have to do some de-pinning on the connectors. I had to create spreadsheets just to keep all the conversions straight. I got a workshop manual (PDF format) on eBay which has been essential. It covers the Trooper/Rodeo/Amigo/Vehicross on '99 - '02 models. Without it, I'd still be rubbing two sticks together trying to figure out where to start. Highly recommend.