We have the same set-up, RB Elite and a CRV. If hooking up solo, I prop one arm on top of the tool tote we use to carry cables, cords and misc hardware. See:
Tote bagThe added height on the opposite side makes that part of the job pretty easy.
If we're talking about installing the towbar in the receiver. I have a routine for that, too. It's stored a ways from the MH so I put it on another HF product -
Hand cart It sits with the front bar pointing forward and the bar latch engaged so it rocks on the platform. When I get to the MH, I rock it back so the T bar just enters the receiver. It's then easy to lift the two arms and slide it the rest of the way in.
The biggest hassle for me is getting the locking hitch pin in because of the bodywork near the hitch receiver.