Well long time no see, made some progress lately.
I have a 60A MPPT solar inverter to charge the batteries, and six 100W flexible solar panels. I also have a 100amp battery charger so if I have to I can use my generator as needed. I've heard with cloud cover panels may only put out 10-20% of their rated capacity, I need to recoup around 900 watts a day to run the AC inverter and refrigerator. In the summer I might have enough overhead to run air conditioning
I have a waterproof enclosure that I plan to mount the battery charger, solar inverter, and breakers/fuses inside above the battery box.
Around here most camp grounds have outlets so I don't have to worry about sound too much, but I can always just make a sound deadening box for the genny as needed.
The inverter can be paired with additionals if I ever needed to increase array size, each can support up to 48v 60a systems! It would be cheaper to do a 24v or 48v system for inverters, but then you need to step down to 12v for a lot of devices (buck adapters are cheap but inefficient). Luckily there are nice 24v and 48v DC to AC pure sine inverters.
I wanted to do a roof rack with the hard panels originally but this seems to be more elegant and easier. The folding system I was coming up with worked and probably increased efficiency by maybe 20% versus laying flat, but I don't have time to weld up a rack for it right now. That and it stuck out like a sore thumb, I don't need another thing for thieves to screw with. Plus the flex route was cheaper due to sales.
I am going to mount them three on the front end and three on the back - two banks of three each. That way if any panel is shaded the whole pair of 3-panel arrays doesn't crash, they act independently - at least in theory. I have materials to be able to do the wiring three ways: all series, all parallel, or a hybrid of both! For now I am going to do all of the panels in parallel, two separate banks. Supposedly this will give me the best defense against any shading that might occur!
I found some nice hitches I can mount to the back of the trailer, I am thinking that I will buy a 60"x24" cargo basket for the rear, and use it for the propane generator or bikes or whatever else, maybe my propane bbq after I modify it? This should help offset the colossal tongue weight too
I got all of the parts to run the water system, I just gotta decide on how I want to mount the water heater and find time to mount the fresh water tank.