OK...after checking the edit above and the PM, some suggestions...
First up, given your sight issues, I wouldn't lose the Elements. That's a very useful device, inasmuch as you have the modelling generator and the resonator (aka Rings) in one package here, and it's bigger and clearer to use than the 3rd party builds. The Contour should definitely stay as well...not only does it have the ability to work as four AD envelopes, you can loop these and use each section as an LFO with CV-controllable rise and fall. And the Penrose quantizer + dual S&H actually give you the rudiments of an analog shift register, so those need to be there. Basically, the module compliment (aside of the DATA) is fine...you just need to fill the hole with the right toys.
If you need the larger panel space (yeah...my near vision is totally shot, too) for VCAs, your best bet is probably Intellijel's Quad VCA. Basically the same thing as the Mutable Veils, $10 cheaper. Then you can use the Blinds as a quad CVable attenuverter, which should really help that OTA VCF sing as you can then feed it inverse envelopes and/or complex mixed modulation. As for a second filter, try something more exotic; the OTA VCF has your basics covered. Maybe Dave Rossum's Linnaeus would be a good fit there.
As for the next 104 hp you're thinking about, consider dedicating that largely to sequencing and timing. The quant setup there could make use of a good sequencer, which also means a decent clock and clock-mod setup. Definitely consider adding some logic gates at that point; logic + things like comparators, skippers, divide/multipliers, etc add lots of potential rhythmic complexity. As for which sequencer, that depends more on the sort of music you tend to create, as some sequencers do certain things better than others.