Its alive!
Electronically at least. I got the PCM to talk to me, scanned it and wrote to it. I was making sure that VATS was turned off, had to set it to "P/N" for the neutral safety switch on the shifter, and turned off the "shifter lock" function (just in case).
I also finished extending the wires - so very un-engaging. Now I just have to finish routing the wires, wire in the Boost-A-Pump/hot wire to the fuel pump, terminate the SpeedHutgauge leads, connect the cruise control and AC wires, securely mount the underhood fuse blocks and the PCM, and finish looming it up. Ugh.