Two things to minimize travel issues-----------1.) Buy a new or well maintained MH from a quality manufacturer and 2.) maintain it well including where and how it's stored.
We bought our 5 year old MH with 32,000 miles on it. Over the last 7+ years and almost 50,000 miles, I've run into the following (nothing really major).
A blown fuse for the LP burner control.
A tired battery that needed to be replaced.
A flat tire at a camp ground. Put spare on.
A blow out on the interstate. Put spare on.
A broken leveler spring.