Unfortunately the way EA is set up, charging would be difficult. Either unhook every 2-3hrs or take up all the spaces (if available) .
Definitely not ideal. We camp approx once a month. I don't think the Aliner will kill efficiency like that guys full size camper, but I'd say 100 miles of range isn't too wild of a guess. Fine for some of our journeys... Tricky for some others.
Probably still not feasible

Really itching to get rid of the rav while it's worth something, but I certainly can't take the camper with my leaf! Can't justify the upgrade unless I'm getting a car that can handle towing. The leaf is a perfect daily, and spending 50k on an ev doesn't make sense to me if I still have to keep a fossil around. If we were hotel people, sure. But we like our camping trips!