I retired six years ago and we travel/live in a RV for about six months a year. I never thought that at this stage of my life it would be so dynamic. I would take that into consideration since your plan seems pretty set, and investing a half million dollars is nothing to sneeze at. Assume 50% loss on purchase every 5 year.
Have you ever RV before or lived in one for any length of time? How about your traveling companion? (if you plan on having one.)
Once you're on the road you'll find out that people travel in just about anything, and the success is based more on the person, then on the rig. Not the answer you're looking for, just something to think about in your overall plan.
