Thanks Andy. All the other threads I pulled up were considerably older, don't know why that particular thread didn't make the cut.
Besides the wiring info in the prior threads, which I'm fine with, I was just curious about the 3 position key tumblers in the 2 position housings. As you can see I'm using the housing with the integrated light and that doesn't require the separate mounting bracket. It would be useful to have a version of this that allowed a true ACC only continuity instead of always connecting ACC and the Starter circuit.