Florida would kill him almost instantly with the massive amount of "heat." And, if not the heat, his fingers would be chewed to nubs with the non-whiteys there.
Nevada has a few places that MIGHT be ok. Reno would be the most likely choice, or maybe even just Virginia City (which has Reno right down the road) if he wants a smaller, nicer place that's close enough to a place to do his weekly shopping and still have access to stuff. Plus, if he ever walks down the main drag of VC, passers by might actually see a nasty lookin' prospector with his donkey on the sidewalk at the same time as a pig and his horse. VC is actually a pretty neat little place to visit.
Vegas would destroy him, not just because his gambling addiction, but because the heat here is unreal sometimes. Overnight lows in the summer are closer to his daytime highs in Reeeenton. Of the other somewhat decently sized towns, Elko might be about the only one that he might survive in. There's a moderate amount of places to buy shit, it's not very heavily populated, pretty quiet all things considered (it's more a mining and some farming town), and the temperatures are nice in the summer. Winter could be a bear, cause they can really get hit with some snow.
But, if he ever has to move, it'll be back to actual-mom's house when his Wakhando is pried from his stubby little fingers. He ain't going anyplace else.