Thanks. All good points. I wasn't aware of the breakers being audio CB's. I will look at a replacement to fuses.
I got the 3kw inverter, not because I will use 3kw, but I don't want to run it too hot. I figure I will stay around 2kw for my work, but when I need to plug in my. welder, 3kw will do the trick for short periods. The cables between the batteries and Inverter and charger are 1/0 and less than 16" but I am open to 3/0, though I think the 1/0 should do the trick.
The 80a charger is a Progressive Dynamics, PD9180ALV, 12V Lithium Ion Battery Converter/Charger. It is a purpose built Lithium charger and has Lithium charge profiles, thermal management, etc. Its from the same company that built the RV distro panel and while they have a replaceable charger for Lithium, I opted for an external as it has more power. I can also parallel two and get 160amps if need be.
I have wireless Happy Jacks and they do draw some current, however, they are feed from the battery box in the lower left corner of the drawing. I wanted a more consistent environment for my packs so I moved them inside under a bench seat, which is 4' from that RV distro panel.
I don't have a battery disconnect switch, which I thought might bring some notice. I didn't put one in because both the circuits are protected with breakers. That will save my SBMS from certain death if the inverter pops the breaker and opens the circuit for the PV's. The PV's will only lose battery connection if there is a serious issue with that short link. It just made sense to me.
Thanks so much for the feed back, I certainly appreciate it.