This is the longest video I've found on the EarthRoamer. I love this concept, but too bad too much for me.
Actually these are the only two that should be in this forum. I like both of them. But not really bug out material except maybe the boat in the right place.
Bug out vehicle needs to be simple, ordinary, and versatile. I'm thinking early 90s Tahoe or Bronco. Then convert it to diesel with the ability to run biodiesel.
Converted school busses look like they are more rugged than an RV. You can haul bicycles or small motorcycles for emergencies.