Welcome to the forum toml-nm, and greetings from a fellow NM resident!
Our previous 5th wheel was a rear kitchen floor plan, and we loved the extra counter space & storage.
We were also concerned (at first) about the potential for things to bounce around, but after 13,000+ miles, we never had anything fall out of the cabinets, or break. We did have one drawer that would come open on occasion, but quite honestly, I think that had as much to do with the double-tier (silverware/storage) drawer design, and not simply the fact that it was a rear kitchen... especially since none of the other 3 (typical) drawers below it ever came open!
Happy shopping!
Terri [& DH Kevin]