Appreciate these solutions and ideas folks! I’d been thinking about alternative approaches that either double as sound sources or fx so you’re in the ballpark for sure! I could also be using the Mod VCO for more modulation than I have been. Mavis has sample and hold too?

Was even looking at some modulation fx that have CV/LFO out (Warm Audio RingerBringer, Death By Audio Disturbance).
Analog Four would be amazing but think I’m short on the space and £££: a long-term goal though, can imagine that being a lush pairing.