Time for an update. Have got the heater, lower dash, and American Autowire electrical harness in the car. It took me days to get an overview of the electrical harness, lots of planning and pondering there. I've always heard that wiering a car is such a massive job, and I think I know what they mean.
Started off with the heater. 1/2" Dynaliner behind it on the firewall.
Fusebox is in next. The clutch pedal is out at the moment to fix a minor problem with the locking clip engagement. Basically a washer inside it is too wide.
The wires to the lights, horns, fans, etc will be routed outside the engine bay.
Wire harness laid up on the lower dash. Now the next job is to rout everything where it needs to go, and then start doing connections.
Also, the splash shields had to be modified to clear the Boss 429-style brace I added. My friend Roger did that, while me and my brother worked on the harness.