Anyone made a big, portable workspace like this?

I recently left a job where I had access to a wonderfully-equipped radio workshop. Now that I've left, I've been thinking a lot about making my own workshop for repair or manufacturing projects at home. I don't have a space I can dedicate to this, however, so I've been dreaming about a fully-equipped workspace that folds up into an armoire-, or cupboard-like shape. I want something not portable, per se, but moveable, that I can have in a spare room and fold up neatly when not in use; and move easily to a new home.

I've seen a few portable workspaces that are suitcase-like, but they require a separate bench and don't really fit any test equipment.

I came across this very interesting design by a Japanese designer for an entire workspace, who apparently published it as 'open-source' but the plans seem incomplete and I can't find any evidence that anyone has actually built it.

Nevertheless, it's the closest design to what I want. Has anyone else done something similar?