Locomotion had a good list. I forgot as a "wish" list:


* Bogey wheels or skids help keep from dragging the tail on hills/dips.

And maybe some RV type jacks at the rear corners so you can load and unload without having the truck connected.

Adding to wish list, built in air tank(s) and maybe even an air compressor. The "portable" air tank is another item that takes up space, and is either in the way, or stored in a hard to get at place.