Well it finally happened…
My K40 and my Ox are now operational bedfellows.
I got them both fully operational and moved to the garage including a quick disconnect (no screws) for the K40’s discharge hose :).
They are both now mobile so when there is good weather I can open the garage and move them to more accessible positions. I was surprised how much room I had even when they are parked.
Now to decide on something stellar to make with them …
I have my K40 and my Ox in my garage, too. Not really mobile though. I have my K40 next to the window so I can put the vent there when it is in use. My Ox is on a 4x8 piece of crappy fiberboard on top of a folding table. I’ve been wanting to build a dedicated table for it from some 2x4s I have lying around, not unlike what you have. I was thinking of putting casters on it, but they are expensive. Idea just popped into my head looking at your: 3d print some feet to make it a little easier to move, but still stationary most of the time. I like the idea of a cart for the K40 though. I might copy that idea.