Well, if the build is supposed to be in a 3 x 84 A-100 cab, then...
Following on from some of Jim's suggestions (notably the voice division), here we've got THIS:
Top row: This is "voicing". An A-119 provides an external audio input with envelope following. Then a buffered mult (six VCOs, so...yeah, it's needed) followed by a Ladik Gated Slew Limiter for portamento. Voice 1 (or more) consists of a Doepfer Quad VCO feeding a Veils clone, with a Doepfer Mini Stereo Mixer after that to spatialize the VCOs before they hit the Ikarie, a stereo VCF from Bastl. Voice two(ish) is built from a pair of Noise Reap VCOs in the Paradox, then these feed to an Intellijel Bifold before hitting either a WMD Overseer stereo VCF or a pair of LPGs in the Make Noise LxD. Or you can use both, making the LxD function as just a dual opto VCA.
Middle row: Modulation sources. A Doepfer S&H/Noise module starts at left, then a dual Tides clone from Tesseract handles the slow modulation. Maths is next, then the MISO allows you to screw with mixing/inverting/scrambling the modulation signals over the whole row. A 3xVCA then provides amplitude control over the modulation when needed. Two EGs after this...one is Intellijel's Quadrax (with the Qx), and the other is a dual ADSR from Doepfer.
Bottom row: Timing/sequencing/output. A Konstant Labs PWRchekr lets you keep tabs on your DC rails. I then went with a Temps Utile for the master clock and subsequencing. After this are a number of modules for screwing with timing: Doepfer Clock Divider, Ladik Dual Probabilistic Skipper, Ladik Dual Pulse Delay, Doepfer Boolean Logic, and a WMD Tool Box. Following that is an Erica Pico SEQ2, a four-step CV sequencer that can be used in numerous ways along side the 8-step Qu-bit Octone, which also has internal quantizing. The Shakmat Sum/Dif then allows you to add/subtract CV levels...also quite useful with the SEQ2. Following that, we get into a couple of effects processors: a Tiptop ECHOZ stereo delay, and Happy Nerding's multiFX FX Aid XL. Four more VCAs in another Veils clone provides audio level control to the Listen Four Quarters's inputs. That mixer has two stereo ins, two pannable mono ins, and balanced 1/4" outs in addition to a headphone preamp.
This build is more about providing many potential routings than a simple "it does this", however. It's just as suitable for outright experimentation as it is for "mission-specific" patches; in fact, with the amount of modulation/clocking potential here, you could even steer this into generative territory with very little in the way of underimplementation issues. But considering that this has as many as THREE potential CV/gate sequencers (one's hiding in the Temps Utile), six VCOs, stereo OR mono routings...well, you'll have some real trouble trying to exhaust this sucker's capabilities. Note, also, that the VCFs both feature cutoff controls that have ample room for live tweaking even with the general density of the overall build. Should keep you busy for a hot minute...