Basic Questions on Solar Install

Well there are a lot more considerations and opinions on solar than I imagined. What I ultimately decided was to go with 4 175W panels. There will be 2 at the very back on each side of the vent. Then one in front of the vent situated perpendicular to the trailer. And then one more between the A/C and the vent in the middle of the trailer. These will be installed in parallel and running 8awg wire from the panels to the combiner box that is at the front. From the combiner box I'm going to go through the roof and straight down to the charge controller with 4awg. We use the trailer quite a bit in the winter so hopefully this will be enough to let us dry camp without the generator for 4 or 5 days. Right now we can go about 2 days in the winter without the generator.