Nice job! I need to get some of those Wago lever nuts. I am building a very similar box, if I would have known I would showed you my progress when you were here. I was planning on using some inline fuses I already have, but that circuit breaker is pretty slick.
I am starting with a sealed lead acid 10A (it was free and works), but have plans to go to a Lifepo4 10A of the same dimensions if it works as I expect it will. I made sure my charge controller will work with a Lifepo4. I am using a HF ammo can and I think I got the same wimpy switches you did. I was shocked to see 10A rate switches with those pathetic little wires on them. I 3d printed the panel itself as well as the PowerPole panel mounts. I also 3d printed some LED sockets for area lighting and have a small inverter that I can plug into the PowerPole outlets if needed. I have a ton of foam of various thicknesses if you need some.
