Lots of good stuff in this V3 rack.
Suggestions:
— the Quadrax expander is a good value of $s and HP, I would recommend finding space for that
— the 2 Mixups you might be able to find an improved alternative. How many voices total do you plan to run simultaneously?
— personally I would want a bit more oscillator options in a rack like this. A complex oscillator, Intellijel Shapeshifter, something along those lines
Overall this is looking like a solid and fun rack.
Enjoy!
Nicholas