No, these were actual office type enclosures affording some privacy, as well as plenty of surface for note taking. The spirit of point #3 was made so you could move _everything with you - desk, shelves, chair, etc.
Possibly. Lots more detail needed in a deployment plan.(lights/heating/cooling are just a some of the issues that would need solutions) While I can't find it now - I recall an article of a company that had individual work "offices" on wheels, that had dry-erase board for the exposed surfaces. Someone could become part of a given team by moving their personal office to the team area, and plugging in locally for power/connectivity/etc. I think it cost more than $500 - but at the time I though it was a very unique approach to making any open space (cheap unfinished warehouse?) into a "teamspace" with individual offices.