Off grid for first time, need some guidance !

I have had very good results using a small 2000W gas powered inverter generator (Firman) from costco and before that a larger heavier Champion 3500 generator. Both had the RV receptable and standard 120 AC receptacle. With adapter you can use RV socket for 120 AC also. Also has a usb socket for charging phone and laptop. I also carry a spare 12 volt truck battery for use with trailer and truck as backup plus a small smart battery charger to charge batteries if needed. Each item is very small and weighs less than 50 lbs. For jumpstart emergency I have inexpensive but powerful lithium power bricks/banks that will fit in your glove compartment. They have worked wonders for me when I had starting problems. The brand of one of them is "Type 5 or S"

In the quiet econo mode I can run generator for 8 to 9 hours on one gallon of gas.