I'm not telling you what you should do, just offering more opinions.
the ipad, in my opinion, is just as valuable a resource as any other synth out there. especially for electronica. don't underestimate what you could do with software and a solid sampler. I've come full circle on my thinking and all I've really kept are the digitals I really love and monosynth/modular stuff. You can do basically anything you want with a kurzweil pc3k. just saying.... On one hand, one needs to separate from the software to not be a slave to it. On the other hand, you need the software to get really sweet sounds (IMO). Disregarding what you can do in the digital realm is a severe mistake musically (Unless you're a physical instrument player, I'm just talking in regards to electronica).
have you thought of something like maschine? you'd get a lot of mileage out of that as well.
Dark time does appear to have at least some midi implementation, i'm just not sure what it does or doesn't do. and the maq is like the opposite - it's very geared towards midi, but the cv/gate outputs are on the back
which is annoying unless you have it racked with a patch bay or something.
don't sell the alpha juno after you get the mopho - you might regret that.