I built a shelf in the rear storage area in my 3326 to stow my Yamaha generator. The shelf is high enough to clear the rear door seal. I built a ramp that allows me to push the 2400 up from the ground to the shelf.
The ramp is a simple affair and consists of a 2x4 that lifts it up high enough to clear the lip of the door. I stow the ramp under the couch.