I have been living off grid on wind and solar for 25 years. And I agree with Pollard, the A/C is a problem child. Everything else you can get away with a minimal set up, but not the A/C. It would require too many panels and too many batteries to use one. And even then an AC fridge would be a problem, propane fridge is more practical on a self contained system like that.
I have a 12 volt fridge in my camper and it will runn 24 hours on one 12 volt battery with no problem.
I could go with a propane fridge, no problem there.
I had an Edgestar freezer/fridge that iirc, pulled 5 amps @ 12 vdc. Our 500 watts of panels were minuscule but managed. The golf cart batteries were 6 vdc wired in both parallel and series and each was 220 amp hour.
TV and DVD player didn’t take much. A laptop or even better, a tablet would be better than a desktop.