Yes, taking the entire house over, if you can afford it, great. But why?
Have a different take. I say: Fit the loads to the batteries, and not the batteries to the loads.
Batteries for off-grid setup/evenings are seriously expensive and have to be replaced every X years. Why waste money on that if you have access to utilities, MUCH cheaper per kWh.
And when the utilities are off, decide what loads are important and sort only that.
Re neighbors demanding their “right to charge their phones” … very few legal guns in SA, lots more illegal, so no problem there really. However, we do have BIG surrounding walls, some with electric fences on top and some people have dogs … so not an issue really. 🙂
Other than that we are a very friendly nation and will help any neighbor in need … just aks nicely IF we answer the door intercom. 🙂