Here is where I am in my build: 
The space to the right of the Quadrax is reserved for QX expander
This is the build I'm looking to end up with: 
I have been using what I have so far mostly with my Hydrasynth desktop. Have been gradually learning CV Tools in Ableton (MOTU 828 for CV outputs/inputs
I've been considering the Gravitational Waves as my next add so I could really mess around with the Warps module, but interested in any feedback/suggestions from the group as far as where to go next.
One of the things I would like to be able to do is run the audio from my Hydrasynth into something that would allow me to either process through various modules OR to bypass and go straight to my MOTU 828 audio interface into Ableton. Still learning but I'm assuming that the Ladik A-520 4ch(in) line preamp/Bastl Instruments Ciao! combined with the Cosmotronic Cosmix would allow me to do?
JB