Updated 11/29/2024:
After a trip to one of the box stores for more conduit and fittings (I had no idea you could get 10' lengths of 1/2" conduit into a 2008 Cobalt coupe ), I was able to install Stop button #3 next to the Weirton Junction tower control panel.
Conduit installation, running of Romex, and placement of the junction box is next on my list.
More when I know it.
George