Here's a movable truck stand for my HH that would work form most canister-type RBs. It keeps the unit safe when on the road and safe from falling over when dressing, as the unit is tilted backwards (center of gravity thing). It is nice when working out of the truck, like in cave country, because it makes life easier. Added a hinged platform extension (holds my rig's weight when I'm standing up), made a couple of other mods, and a fresh coat of paint so thought I would share.
My buddy actually made a permanent stand in his truck for my OC tanks, then modified it when I got a MEG and then the HH. So, I really stole his idea - but don't tell him!