Post

Here's an attempt.

The left side is your sequencing and modulation section. The combination of Pam's, Kinks, and Short Bus gives you a wealth of gate, trigger, and clocked modulation options to drive your modulation hungry voices. Stages is huge for such a small box but it does two crucial things: envelopes and sequences. I'm currently obsessed with it, so it's in the box. O/A/x2 will give some hands on control over all that modulation; some of BIA parameters are very sensitive and trying to get them right directly on Pam is a pain.

The noise out of Kinks will go to one of the Optomix channels to be percussion.

SY0.5 and BIA are your main percussive voices. Tiptop One does whatever they can't : chords, pads, ambience. And probably hihats :-/ Disting can do whatever is missing elsewhere.

The Doepfer dual VCA gives you the choice of linear and exponential response; maybe not actually needed because both Pam and Stages give you control over shape, but still handy I think. The knobs are not too tiny. With your choice of voices and the Optomix there you are more likely to use this for CV than audio.

The ergonomic disaster now begins. The idea is to use stack cables to bus the inputs of the two 2hp Mixers together. One is then your main mix and the other is your FX send to the Pico DSP. Hopefully you are not going to be tweaking too much, unless you have very small fingers! My preference would be to ditch this section entirely, mix on a real mixer and use outboard for effects. You will obviously need an external mixer for you other gear anyway.

I kept all the things you already had, but given a free choice I would have ditched the Optomix and the Tiptop One.
* Tiptop One can be replaced by Disting which is a perfectly good sample player, with lots of modes.
* Optomix is very big for what it is, and since your voices all have their own envelopes the need for an LPG is less.
With the 12 hp saved you might get :
* a FILTER. Lots of good options for 8hp or less, pick one to your taste.
* a "normal" VCO : Doepfer A-111-3 or 2hp VCO are flexible compact options, but there are plenty more.
* more utilities.
I might go for : 2hp VCO, 2hp Tune (to help Stages be melodic), Make Noise LxD, Doepfer A-121-3 Mulitmode filter.

I'm sure there is a lot of room for improvement but I think this has the potential to make a lot of fun (if minimalistic) techno, even without any other instruments.