On our RL we have side by side WD. I made a raised platform for the dryer and the litter box slides in under it. Out of the way and the cats use it even when the dryer is running.
Vaughan & Tracy 2013 RW 36RL, 2013 F350 DRW CC, 2016 Focus. MorRyde IS, MorRyde pinbox, disc brakes, Comfort Ride Hitch. "Life is to be embraced, Grab it with both arms ! "