The portables are connected with 8 AWG. At the present time I plan on using 8 AWG from the roof combiner box down to the controller. For us that means routing through the refeer compartment. Thinking two 150 watt panels on the roof and using 10 AWG from panel to the combiner box even though that is over 8 amps maybe from each panel. I'll revisit the volt drop and the 8 AWG may get increased to 6 AWG between the Charge controller and the combiner box.
AM solar has some narrow panels that may work better for you but they are a bit expensive.
__________________
|