Do they even know that they like RVing? With a 1 ton truck, they have lots of options. If they like Cougars, have tham look at Mountaineers. Both are Keystone products. For dry camping and FS campgrounds, I would suggest looking for a nicely maintained, shorter used Arctic Fox. They have good-sized holding tanks and are well built for the $. A used Carriage or Nuwa trailer would also make the top of my list for buying used. For ease of finding somewhere in more natural settings to park, I would suggest they look at overall length of 30' max. Do not go by the labels! The fifth is likely to be easier to handle because of the hitching issue and back troubles.
