That seems like lots of PV and wiring to me! I've lived with 875 watts (5 panels), off grid, for a decade. Just upgrading by adding 1500 watts more now. Helps to be in AZ where clear skies are the norm.
Back to stuffing circuit boards and soldering today, I'm updating my (10) battery regulators with the new pcb's with fancy silk screen and solder mask, adjustable bulk, float, equalize voltages, etc. I got the PCB's for peanuts as an add on when ordering new boards for my neighbor's setup. My present battery shunt regulators are the original bare prototype boards with plenty of mods.