honda ecu is a good idea i think, there is almost as many features as a standalone, i dont think it does boost by gear and doesnt have a feature to run COP, i know with hondata you can flip a switch and datalog witch is good for the track, most tracks dont let you run a laptop in your car while running your car, for us in utah, we have a few really good tuners, that are really good with neptune and hondata
i dont think the wiring is a issue at all, grab a obd1 honda harness, and splice it into the power and ground sources, i think they said there was a few things you need to do with the relays for the ECCS and fuel pump, but if you can read a wiring diagram you can figure that out as well, i have the pinout for both the honda and nissan computers and scan it if someone wants me to, wiring shouldnt be to bad if you start with a honda harness, im sure to make it run perfect you will need the honda ECT sensor, any map sensor, i plan on using a gm 3 bar, and the IAT sensor aswell, and use the stock TPS