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.
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I've installed two Holley sniper kits (using the coil module only), the best plan of attack here is to verify which wires provide 12volt at cranking, all the time or in the run position only with a voltmeter. Then you can figure which wires you want to run to the Holley kit for the switched voltage and the on all the time 12 volt. Your probably going to end up with some wires you no longer need.