I am far from an expert but have you calculated your voltage losses with those long wire runs?
Voltage Drop Calculator
Also that front panel looks like it could be shadowed from your Maxair vent cover. That will really reduce the output of that panel. Hard to tell from the picture though.
I have been doing a lot of reading about solar lately as I just ordered a system for our trailer.
The basic consensus is......
Build for no more than 3% voltage drop from the panels to the battery. Short runs with big wires.
Shadows really kill output or potentially drop it to zero even if only one cell out of 36 in the panel is shaded.
Get a programmable charge controller so you can adjust the charge voltage based on battery manufacturer recommendations. Often need 14.8v to battery to fully charge it.
Also 200W of panels is not really enough to keep 320amp/hours of capacity charged.
Check out this resource if you haven't already. Really good information if you can get past all the ranting!