What Class B has a dry bath

The Pleasure Way Pursuit, call it a B+ or a C, is 22' - 9" long and has a big dry bath. The Leisure Travel Free Spirit SS and Coach House Arriva, although they are Class B Sprinter conversions, are both more than a foot longer than the Pursuit. You might be able to find a Pursuit about 2 years old.

If you are looking at new, or fairly new, then

Arriva is the only B I can think of currently in production, unless you get a custom built like a Sportsmobile.

Your next best bet is to find a van with a large wet bath, so you get the elbow room that you are looking for. I consider the Great West and Winnebago Era to have fairly large wet-baths, considering they are side-baths. The new Pleasureway Lexor side bath is fairly roomy with a nice vanity cabinet with counterspace.

If you're talking used Some of the older turtle top vans have dry baths in the rear. Airstream, Coachman, Phoenix, Falcon, Great West vans but I don't think anyone has built one since early 2000's these are mostly Ford and Dodges. Forest river had a Sprinter based B with a dry bath they were called MB Cruisers. I really would like on of those. Great mpg with huge tanks.

Leisure travel vans has a dry bath in their free spirit ss and Coach House has one in their Arriva. The Pleasure Way with the dry bath is a class C.