One wire GM style alternator wiring help needed.

I guess I'm confused as to the complexity of the question, When the purpose of a self regulating, 1 wire alternator is to bypass all the original wiring and simply install a self exciting alternator that has a single wire running directly to the positive post of the battery...Or I suppose the starter relay post if you have that jumped back to the battery. I would make sure the charge wire was adequate gauge also.

Is there a reason to complicate it beyond that?

I just installed a 1 wire myself, and was happy with the cleaner install, and eliminating the OE type setup.

Adding a kill switch inline should be as simple as breaking the positive battery cable between your battery post in the trunk, and where you have it bulkheaded to the starter relay. (As long as it kills your ignition also) I don't necessarily like that you have a 2nd wire running to the starter. But if your kill switch post "out" became your new splitter for those 2 wires, it would kill everything, including the starters ability to crank.

Hope that helps? And hope I didn't just ramble on too much about a question you weren't really asking lol