I've read the other thoughtful replies.
I am also in my early fifties, facing a lesser retirement as well. I would like to make a run at full-timing in the next 10-15 years.
But I have a leg up on the OP in that I have spent 16 weeks on the road in an 24' RV already, through various family trips, of 2-5 weeks in duration each. So I know what to expect on the road, and how much I enjoy time on the road. I love primitive sites, which will greatly reduce my costs.
Renting is pricey, but would be worthwhile to know if you can even stand FT. Or if you can find someone to loan you theirs, etc. And stay in places you expect to use, rather than fancy private campgrounds.
Full-timing can be cost effective, but will be even more depressing if you don't enjoy it.
