EFI help needed, Wiring questions.

I am converting my 73 scamp, 512RB to super sniper EFI. I have a new wiring harness that was for a small block. The Sniper EFI also has Hyperspark coil, Hyperspark distributor, and Hyperspark ignition. The alternator has a built in voltage regulator.

Since I will not be using the original ignition components, How do I handle the wiring for the voltage regulator, the ballast resistor and the ignition module? as well as the others seen below?

The oil light I will need and I will also run a gauge. The distributor and coil wires I will not need, do I cut then and cap them off? OR what??

Also, What is that black wire with the rubber fitting used for/. I searched the FSM to no avail. It runs up by the battery and the rubber fitting is like the one for a temp sensor but that is pink or violet and already in place.

Finally, I read earlier about there not being a wire that is hot on both cranking and running, and that we could combine 2 from the ballast resistor and get that. If so which ones? If not, what did I not understand?

Thanks for any help and wisdom.