Ron,
Those two floorplans above both show a "CAB-OVER BUNK" ... plus that area looks long enough to extend well over the cab's roof.
Those sure are coming awfully close to anyone's definition of a "Class C" - not a "Class B+"!
(Now, if the designers could only compress that lower slide-less floorplan into ~24 feet - plus swivel the passenger's seat they'd really have something.)
2005 E450 Itasca 24V Class C