Montana Jaboni Solar Pre-wire

[SolarRuss]

I have been searching for any wiring diagrams on my 2019 Montana 3810MS. Cant seem to find anything online. Sales sent me to service which sent me to the Keystone company. The factory said they did not have any wiring diagrams which I find odd. Anyway, I am a solar installer for homes and businesses, do some off grid and battery stuff too but, it would help a lot if I could find out where the wires go from the MC4 connectors on the roof. I would also like to find out where the inverter is now and maybe I can figure out the best way to install my solar.
I have 4 310 watt solar modules I would like to put on the roof, most of the information seems to lean to a 2000W inverter. Some say 3000 but, I think I need to go a bit bigger as I also have 4 100ah 12v LifePo4 batteries which should do pretty good. Any help would be appreciated.