up top you talk about using a PWM solar controler and at the bottom you talk about a MPPT controler.. use a MPPT controler if you can, the only thing I would do is more solar power, by either a larger panel (24V panel) or 2 or 3 100watt panels in series, I try to get between 3 to 400 watts on a low power use aplication so my batteries recover faster if I have a few bad solar days.
do you have the storage rail around the back of the camper. you could put brackets to that and mount the panels above the vents and such if you do.
Steve
