Good description why you like SA. The whole install looks good. SGP will like it.
I have the entire main house (4000sqft, 2 kitchens, hot tub, electric water heater) on solar and used utility power for a few hours only (10 maybe) in the first half of March. If I charge the PHEV on the SGP system, I can push consumption to 45kWh in a day.. which in recent weather is no problem. I do have 13kW in pv now.
(Usually I charge the PHEV with a smaller dedicated pv system.)
Not on solar: pool equipment, guest houses, well pump, booster pump.
Really happy with the inverter, have 5 batteries and thinking of increasing to 9 before winter.
But I won't make a video. I still have some temporary portions here and there .
All that said, did you read the thread "House burnt down"? It illustrates the importance of class-T fuses. The system there had operated for 4 (!) years before a bad fire happened.
So, I am thinking of a class T fuse between each battery and the bus bar. I saw your have a breaker but no fuse either?