If you plan on using the AC or microwave then a generator. Running on solar takes a completely different mind set. I did it for years for up to 7 days at a time but I have come to learn that I am a little different.

You need more batteries and 30lb tanks. Our fridge would go through a 30lb tank in a week all by itself. If you do plan on running the AC a 2800-3000W generator is needed most of the time.