Thanks for the helpful replies. I really see the TCs usable off the truck and those which are not as two entirely different types of camper which right now share the same name of simply "Truck Camper". I know that overseas they are sometimes called "dismountables", and while I do not know exactly what they mean by that, that name seems to better describe what I need; a camper that can transported to your destination to be dismounted from the truck and fully usable as a (very) small cabin, as well as providing the usual mobile option.
