Careful...if you sell items, make sure and consider possible future functionality first. In the case of the Sub37, that has a lot that can function well in the direction you're heading. But the Microkorg....not so much so, as it doesn't have the level of connectivity (either physical or sonic) with this new 'universe' as the Moog does. Plus, if the concern is desk space, then it's time to think about a small keyboard stand to move devices onto if they belong there.
But at the same time, there's a sneaky lesson in here as to how a rig starts to grow in size. So also consider the physical expansion factor. You may well wind up beyond the 'all-in-one-bag' result...but the thing to do if that happens (by necessity) is not to try and retrench in the small form factor, but how to grow sensibly into the larger one.
Also, this is the start of where inventiveness plays a big part in a rig's ergonomics. How do you make system growth result in an easier-to-use result, rather than something that's just...well, bigger? For that, I would consider looking at some concepts related to larger UI design and operation; airplane cockpits are a good analogy, as they also consist of numerous indicators and controls, all of which may come into use at any given time. And frankly, this just keeps expanding in scale from that 'seed', since an electronic music studio isn't necessarily as bound to acoustic isolation, massive mix positions, etc as a commercial studio would be. My studio, at this point in time, sort of looks like some sort of industrial process control room, albeit with a mixer and studio monitoring...but then, that makes perfect sense, since composing and performing electronic music on a larger scale is very much like 'process control'.
Don't look at this as 'work', though....just consider it as another part of a 'creative jigsaw puzzle'.