Like NCWriter, we went from a B Roadtrek to a Coachmen Prism B+ (yea - a "C"...) on a Sprinter chassis after a decade and 110K miles. We definitely wanted a usable bed without deploying the slide, since we overnight at Wallyworlds, Flying J's, etc quite often while going cross country. Looked at rigs by Winnebago/Itasca, LTV, Coach House, Thor (NOT good quality...), Pleasure-way, Born Free, probably others before we settled on the Prism due to the floorplan. The iRV2 forum has a section specifically devoted to Sprinter chassis moho's. ST