I would concentrate on the devices first. Try to go all DC to reduce conversion loss. A high efficiency DC freezer, ice could be used in a high efficiency ice chest for refigerator. Leds instead of 40 watt bulbs, etc.
I’ve tried to go DC where possible. I’ve been looking at 12v submersible pumps for a deep well.
Yeah, I’m all over LED’s for all lighting. Heck, those solar powered yard lights stay on all night in our yard, even during the winter. I was really surprised.
A propane refrigerator as used in an RV would reduce. The electrical load requirements.