This solution is what we ended up doing. However we used a larger Yeti 3000 and a smaller Yeti and had the deep freeze chest freezer and one fridge on the large yeti all the time. We bought a few spools of 40m extension cords and could tap into the large yeti from anywhere else or we could move the smaller yeti easily to where we needed it. We only ran the diesel generator to recharge the yetis when solar couldnt keep up. Saves a TON on diesel instead of just mindleslly running it constantly regardless of the draw.
The well pump and the fridges/freezer will be the biggest draw and a yeti 3000 or yeti 6000 can keep up with that. Maybe using a large yeti for the house and a seperate yeti for the well pump with solar and grid topoff would be best
It would be pretty easy/safe to get a large Goal Zero Yeti and have it installed with a transfer switch on your house. Installation costs are basically nothing except for the transfer switch install to the mains