work in progress -- but functional and been putting it through it's paces the past 2 weeks. Ideally I'd have put the transfer switch right above the 2nd battery, but my main breaker panel is right on the other side (outdoors). Ran two conduits through the wall into the back of the transfer switch, one for grid AC feeding inverter and one for various transfer circuits.
two PV input circuits come in via conduit to the back side of battery conduit box 1, overall very pleased with how clean/hidden everything is, stud mounted and secure
yes, from the pic it looks like the transfer box is crooked, I can assure you it's not, the wall behind it has a bit of slant out on one side (yay crappy 70's construction)
Addition: I wasn't super pleased with how close the exhaust (no other options really) on the 6000xp is next to the wall, kept an eye on it, it's cool and quiet, but will probably be 3d printing a shroud to affix so that the exhaust flows straight out into the open.
oooo I got a like from the man himself -- thanks Will! Your videos are what got me here and playing with these fun toys.