I think Naio has the best plan. Go boondocking and find out what you require in the future to be comfortable.
This was not a DIY project; son and grandson did the work while I passed up tools and got in the way. It was said when I was a lead scientist on field projects at White Sands Missile Range that "Your showing up is like having two good technicians leave!"
If older son was not in the solar/wind business and wanted to design and fabricate the system we have for us, we would have been quite satisfied with far less. Heck, he makes fun of us for having excess. When I reply that is what he designed and built (just to see if he could build an autonomous system), he counters with "Dad, you much were to easy a sell!"
However, we are full-timers and only go to RV parks to dump and wash clothes(if there are no other facilities available) so we are quite happy to be self-sufficient and not have to use a generator. Wildlife and birdlife pretty much ignore us and wander/flitter about/under our rig.
Reed and Elaine