I'd tend to agree with Scubarx. We use , maybe, 50 ah, overnight, when we run the furnace, and we have an all-electric, danfoss/secop fridge. Without furnace, just careful use of lights and occasional fan, and the electric fridge,, we are usually down 27 to 30 ah in the morning. We, however, are power misers. And, I do have to be careful, as we only have at max, 105 ah available, and try to keep useage to 50 ah overnight. We only have two 105 ah agm batteries.
630 ah could power us for a really long time... like a week to ten days, or more,, with zero solar, if we didn't have to use the furnace fan. (We don't have an inverter, either, and all our gear is 12v ,led, or propane.)
I'd rather use solar, and less (expensive) battery power, personally. You know you can always add additional lithium, right? As opposed to lead acid or agm, where the entire bank should ideally be of the same age?