Thank you, it's good to hear others are able to do it. Yes, unfortunately, I don't have room, or I'd throw a 60 amp breaker in. I think the 30A breaker/24 amps at 240 will be enough. All I really need is approx 20 miles/night.
The only 'important' thing we didn't touch on is always try to use 240v when possible...it goes from ~75% to ~95% efficient stepping up from 120v to 240v.