I don't think the Coach House is a true class B, it looks to be more of a small class C. That may be also true of some of the newer Road Treks as well. In a real class B, based on essentially a high topped van, maybe widened aft 7 inches or so, sleeping 4 will be a problem. Buying used lowers the price considerably, I bought a 98 Pleasureway from an individual owner for 21K ( not like the MSRP for a new one near 100K).
Art