Good choice of first case. I'd suggest removing the Mother into it's own case to create more room but you can come to that point organically as your system grows.
That's the plan!
Perhaps look into additional utilites such as switches (quad sequential, et al.).
Literally never heard of those. Thanks, I'm off to read about them!
LFOs also seem underrepresented unless you want OXI One handling all of those.
Yes, that's the plan for now - Oxi gives me 8 CVs + Zadar for many more.
Maybe a filter?
What would you recommend for industrial? I was looking at Doepfer A-124 (Wasp), Bastl Ikarie and WMD C4RBN.
You may also eventually find yourself wanting additional vcas.
Definitely yes!
Edit: I just realized you had polimaths vs. normal maths. Unless you're planning on expanding with Make Noise's New Universal Skiff System, you may be better off running a regular ol' maths? I'm not very familiar with the NUSS, so don't quote me on that, though.
I was under the impression that Polimaths works well stand-alone, but I'll look into NUSS. Maybe I want to get into it and I just don't know it yet :)
Thanks for your comments, super helpful!!