Seems like more should have been done, but this stuff just took time.
Drilled holes thru the firewall (stainless, remember?) for the wiring harness, throttle and mixture cables.
Added ground wires to the harness, positioned them for connection to the ground block. Located and drilled for an adel clamp to support the ground wires.
Created labels for the cockpit side of the wires in preparation for wiring the panel.