The only thing that set me back was the new transfer switch only accommodated 1 #6 wire on the load side per lug, and of course Winnie has two neutrals jammed into the same lug. I could not get the 2 in the lug reasonably, so I had to get a old fashion lug and pigtail in a single neutral. Beyond that the switch was a direct replacement, including the mounting holes to the chassis and grommet connectors through the can. I just used the original grommet connectors as they were a direct fit.
On the 42E, the control center is more or less above the inverter, so chasing in the remote wire with a fish tape was pretty easy.
