I read lots of posts that running the air conditioner will use a lot of propane. Think about petrol if you plan to run the air much. Make sure you are pricing the right Onan size if you expect to run 2x A/C + microwave, fridge etc.
I primarily use solar. If I want air I am looking for utility power. I carry a small portable propane generator if I get in a pinch with no sun. Too small to run the air. Residential fridge would need a large solar array or supplement with small generator.
Running a pair of Hondas is just a matter of connecting the parallel cables and pulling the rope. With Honda you can also get an extended run fuel tank.
