[Richard]

I think you will be pleasantly surprised at any two slide Newell and the ability to use it comfortably without popping the slides out. My wife and I often didn’t bother with the slides on an over night stop. In my unasked for opinion, the two slide bath and 1/2 floor plan is the most desirable.

You may find there just a couple of Series 60 coaches made at 40 ft.

As you investigate further, you will find familiarity with the axles, brakes, and other gear used on commercial buses. Newell used the same running gear.

I owned and maintained Newell coaches for over 20 years and 350K miles of travel. The ONLY part that I had to source from Newell was slide seals. Other than that, a truck parts store, NAPA, Prevost, or Lowes usually had what I needed. Almost nothing was proprietary.

A challenge with the era coaches you are perusing is air bag sourcing. The air bag manufacturers reduced the SKU of bags they made to streamline their business. However alternate bags are available, they just require a bit of replumbing on air lines.