Looks like you are making some good progress. I have also wondered about the circuit breaker under the sink but not enough for me to move it at this point. I did add a 2000w sinewave inverter under the sink right next to that circuit and ran the power straight to the battery just below it. For our last trip we used that inverter constantly for bottle warmers (twin newborn babies) and a small coffee maker for the wife (I don't drink coffee). It was extremely nice to be able to just juse the inverter for a quick thing versus firing up the generator, especially when in RV Parks with neighbors close by.
For my Renogy panels, I just eternabonded them straight to the roof. I've not had an issue with cupping because the tape is secured all around the perimeter and some double sided tape in the center. . I've not worried about keeping the panels cool. Although I am sure it could be a factor in extreme conditions, I'm not planning on camping in the desert when it is 120+F anyway...
It is nice to see you went with two Battle Born batteries. I am curious how you managed to get them both to fit in the compartment. Looking forward to some pictures. One thing of note... I just started resealing my outer compartments and when I removed the hatch on the battery compartment, I discovered some dry rot. It is ironic that a fiberglass camper is still susceptible to water damage because of the interior structural wood used. At this point I haven't dealt with it since the LiFePo4 battery is 1/3rd the weight of an AGM, I think there is enough stregnth in the wood to hold for now but it is another thing on the todo list...
In my setup, I ran my solar charger and battery monitoring next to the stero (see pic below). It did require running longer wires from the battery compartment up to this area but I like the convienence of being able to observe everything while seated at the dinnette. One thing you might also consider is that your solar charger might be capable of charging both a house bank and starter battery. If that is the case, connect your charger up to the 12v line coming in from the umbilical so that it will keep the truck charged up as well. You will have to keep these two circuits isolated so you would need a DC to DC charger if you wanted to also charge the battery from the truck while driving but not draing the batteries when parked. I am still working on this part to get it right, I have a DC to DC charger (from Renogy) installed in the compartment where the furnance is but I don't currently have the D+ signal wire hooked up because I need to either have a voltage sensative relay added or a manual switch so the charger doesn't run constantly. I posted in another thread about this issue a few days ago if your interested to know more about it.
At any rate, looking forward to the pics when you got them!
