I received the terminal I needed to finish up the main bus power wire. Since the wire is captive in the panel, I had to crimp it in situ. I used a big wooden clamp as a sort of makeshift vise to hold the crimper while I bore down on the wrench.
The #6 wire for bus 1 and the #10 wire for bus 2 are both terminated and covered by rubber boots. Also, I love my shrink tube label maker.
Bus 2's power wire parallels the bigger wire for bus 1. They will eventually be tie-wrapped together (along with probably a bunch of other wires) but for now are loosely held together with masking tape.
Through the firewall and down the engine mount to the 30 amp current limiter:
One wire at a time…