Gents - this clears up a lot of my doubts. I think the only way to know the rest of it is by taking out the seats and disassembling the covers in the trunk, then seeing where everything runs.

It is helpful to confirm how all the wiring runs. I had understood it by and large from studying the 4.8 and my '03. I guess once I have it appart I'll make a judgement on how to proceed. Seems like I could leave the existing loom in place until I get it to run.

I will post pictures and a narrative on here once I get the patient into the OR...... :-)