Well, that's certainly a pile of modules. But that's ALL it is. You're missing things that can make this build stand up and howl, such as attenuverters, submixers, logic and other clock modulators, and so on. There's also a lot of audio sources and modifiers, but the modulation sources are pretty lacking. And WHY are you taking up 8 hp in a small build like this with a BUTTON? Put something useful in that space!
Also, that's the wrong sort of input module for external signal processing...it's JUST a preamp. You need something with an envelope follower to really make that work optimally, so that you can do things like opening/closing filters with your volume level, etc. And two Distings? If you have a problem with menu-diving, especially on a minimal-feedback UI, you're really going to regret that. I like the idea behind the Disting, but I think the implementation is cryptic and crummy...not anywhere as immediate as you'd expect from a modular synth.
One more thing: if you're all about the DIY thing, DON'T build your tile row for Intellijel spacing! You'll find a much better selection of tile modules, including a pile of DIY ones, if you stick with the "original" 1U row spacing.
This is why, when I did my "classical training" in theory/comp (which was a bit looser than hardass conservatory definitions of this, mainly because where I did my undergrad was far more open to things other than the typical "serious music" and what that entails), I thought it was CRITICAL to get some audio engineering under my belt, in addition to my required electronic music coursework. These sorts of things aren't what I'd view as "electives" anymore; composers in this century need to know how to work with this technology, given what's been replaced by it. F'rinstance, I haven't scored anything with a pen since the mid-1990s...using scoring suites is so much better, plus I can check my work instantly; previously, doing a playthru check would entail sticking paper in front of a bunch of players who'd probably not looked at their parts until that very minute...in short, a real nuisance! Composers these days ignore tech, popular musical forms, etc at their peril!