glad others asked those questions as I was stumped about the items! (sort of guess though)
as for the "kill" switch, that is pretty well hiden as one would need a wrench set to remove firewall bump to access. I recall having a similar switch there, but it was something about setting the dual points dwell.
From the regulator, can I assume you are running the original design altenator, or is a regulator needed with updated altenators also?
And is the shown arrangement of belt driven accesories for the reduce bump firewall?