i've posted a few times about my electrical situation, (
http://forums.sohc4.net/index.php/topic,148417.0.html)
To recap:
Replaced original harness with a NEW one from vintagecb750.com. Engineer friend tested the signal all around and found the harness working.
Purchased a starter switch assembly (also from vintagecb750.com) but ordered a 77 instead of a 75. Forum members here indicated only the ends of the wires, where they connect to the harness, were different. I removed the white plastic clip and ended up with:

I ended up stripping the ends and attaching salvaged but proper diameter/shape male pieces from the old harness, like so:

(I am not sure if they're all attached in that photo, but they were by the time we started testing.
I intended to install a simple switch in place of the ignition, as the original key-insert-ignition was shot and I didn't want to replace it. Also, it would be stored inside, so why bother? Here are the ignition wires with their ends stripped and attached to a position switch. The original ignition had parking lights i dont need, etc, so i've deduced from the wiring diagram that I can just put the red and three brown on one and the black on the other, like so.

I am not sure if this is correct, as I am not amazing with electrical. It seemed like a safe assumption. Correct me?
The starter tries to turn over if hotwired, even with the old harness. The battery is solid. I cannot get the starter to try turning over with the setup as I've explained.
Thoughts?