I agree that if it's a cutaway, its a C, or B+, or C minus. But definitely not a B. My understanding is all true B's use the entire van body - doors etc, except for the fiberglass roof.
In my mind, my RT V200 is a C due to its cutaway chassis.
Now, as a former owner, I have always wondered about how I feel about Pleasure-Way. The Lexor models are definitely B's. But the Excel models have had the body widened, which violates my B rules..... but they still use all the factory body panels and doors, which is in line with my B rules.... so I still consider them a true B - or at least a lot closer to a true B than the 200 Versatile is.