Class C or TT to RV with cats? Crate or no crate?

I've seen folks with Class C or A rigs who would create a caged off area in the basement for a litterbox, bed and food/water. Kitty had a set of steps leading up through the floor into the living area via a cat door in a "dead zone" of paneling or cabinetry on the inside. They could lock the door to keep the cat in or out of the basement. If I were traveling with my cat, I would probably do something similar. You could always tow the Prius behind your rig.