Oh boy
What works - speedometer (mechanical), volt meter. Wipers work but I had to jump the 12v to the wiper motor from the washer lead. Headlamps, high and low, blinkers, hazards and brake lights.
What doesn’t work but know why - reverse lights (B&G shifter and didn’t run the reverse/neutral switch), horn (bypassed with a switch), stock temp and oil pressure (additional mechanical oil and temp gauges, so stock senders likely not hooked up).
What doesn’t work - Gauge lights, courtesy light under the dash. Blower motor, radio, fuel gauge.
Occasionally the wiper switch back light and ac panel light up an night but dim (looks like ground).
So working them down one at a time. And seeing the connector was hoping an east fix for some of it. Traced it down some tonight, and goes up behind the radio and then over towards the passenger side towards the glove box.