Back on track...
Today I was able to pull the accusump, drain and clean it, and then swap in the ECV unit. I've also gotten the wiring sorted for it, the connection between the brake switch and the fuse box, and the brake switch and the wiring from the lights to the brake switch, along with the wiring for the XFi brain,the final lug on the master switch, and cleaned up the shop from about 800 bits of tape, wire trimmings, loom and excess "junk".
Tomorrow I need to pull the wiper cowl and remove the wiper motor, install the external power switch in the wiper arm port, and then wire that all up. Really needed to have an external on/off for safety.
Still need to wrap up a couple more wire connections before re-installing the dash, but it won't be long before I'm starting the hard work of "troubleshooting"! certainly by the weekend!
Mike