Sorry I haven't been following a lot of the OBD1 conversion theads. I hope this thing wasn't brought up before. Have you guys looked at this thing?
"Fields ECU jumper harness
Field has developed an alternative for all 96+ Acura/Hondas hindered by the OBD2, factory ECU. This newly developed jumper harness will allow 96+ Acura/Honda vehicles to plug-in any OBD1 computer. This harness is the perfect solution for any 96+ NA or turbocharged Acura/Honda wanting to use a racing OBD1 ECU. A perfect match for our chipped OBD1 ECU's. FOR OFF-ROAD USE ONLY"