Hey Jim,
Thanks for always replying so quickly!
ModularGrid Rack
Ripples was the clear choice on the filter, and definitely an upgrade from what I had in there before. The new version seems like something that I will keep around for awhile. Thanks for the suggestion!

I also got rid of Ears for now, and prioritized the Intellijel Quad VCA. Seems more flexible than the linear-only Doepfer model.

I also haven't forgotten about Maths! At the moment they just don't appear to be available new or for any reasonable price used where I live... So that was the thought behind the Function and the Batumi for envelopes and modulation.

Would you consider this a workable starting point? I'll be transitioning to a self built 7U 84/104 hp case if building my smaller one goes well.