That's a pretty sweet rig, Rick. Been looking around the 'net for more of them, and there aren't that many out there, and they are concentrated on the West Coast. Anything Host makes anymore is pickup campers.
They are pretty rare and when you can find one they sell FAST. The other one that was For Sale recently near me in Oregon was sold to someone from PA. They flew out to pick it up.
Host only made these motorhomes for a few years. Haven't been able to nail down the exact years but it seems like 2007-2009. Not as rare as your motorhome but they do attract attention when you stop.