New, no, because motor vehicle safety standards have changed what can be done with seating that will be used when the vehicle is in motion, for this class of passenger vehicle. Standards loosen quite a bit when the vehicle crosses a GVWR threshold slightly higher.
Used, look for other Coachmen and Shasta conversions, although I don't think Shasta made it into the '90s, let alone the 21st century; it became a Coachmen brand. Coachhouse and Xplorer were building van conversions into the 90's, but I'm not sure either did a side sofa bed, I haven't been shopping for that myself, and I'm pretty sure Coachhouse did not do overhead beds, all I've seen have a low cap. American Cruiser was doing overheads into the late '90s, I don't know interior layouts.
The last Westfalia imported (on Sprinter, sold as Airstream) had the overhead bed, but no bed in back, that was the kitchen and bath. Lower bed was a dinette in daytime, so that nobody was seated sideways.
You can look for Sportmobile conversions, most were custom built; although there are many "standard" layouts offered for each van size, customers could have just about anything built. Sport mobile is an option if you want a new one, you tell them what you want and they build it within the limitations of the platform you choose.
If you want the overhead bed, at Sportmobile it will likely be a pop-up, and now on the Chevy chassis, as everybody else is building high-top vans at the factory and as those are unit bodies, the converters have not yet been cutting the roof off to put something on top.
PleasureWay Traverse was the most recent "standard" model with an overhead bed, that was a popup and had only the bed in the rear. It was built on an E-150, thus the "short" van and 8600 GVWR max.
I take some of that back. Sportmobile is now doing pop tops on all brands they build on, hard tops and high tops for Chevy only. The really big top, like the one on that Coachmen, they only did on the Ford extended van, and for that, you would have to bring your own van.
When I bought my E-350 8-passenger early 2014, the 8 passenger was selling here for about $21K, 12 passenger $23k, "last year" ex-rentals with around 20,000 miles. Express 3500 passenger vans about the same.
Look at the
suggested plans for long-body Sprinter for examples of something resembling what you saw in the Coachmen.
Tom Test
Itasca Spirit 29B