I like the basic design of the pop-tops a lot. Gives you the ability to garage the thing with ease - and yet you have nearly
all of the storage capacity of a full-up trailer (something that irritates me about our little pop-up.
Several companies made these at times in the 80's. Palomino was one that I recall.
All examples I've seen had very similar floorplans. Big bed (sometimes w/ dinette) up front with a couch or small dinette along the curb side. Kitchen (and sometimes a small bath) along the road side and door in back. Most I've seen have a big honkin' bunk bed over the main bed in the front. Sleeps a lot but strikes me as bothersome. I'd hate to be the person on the bottom bunk sleeping up against the wall. Talk about trapped...
Jayco in Australia makes some pop-tops that are much nicer IMHO.
Also - for one year (2001 I think), the Bantam hybrid came in a "garage" model with a pop-top in addition to the pop-out end bunks. Apparently it wasn't a big seller. Since that time I've seen exactly one
used one show up online for sale