Tasty.
I'm looking at the rack. The Erica DSP and the Disting are both capable of producing reverbs, delays, and can be addressed via CV for modulation. I'd try using those. That Mimetic Digitalis would be great for varying parameters of either or both. Make Noise offers a slew limiter much like the two in Maths... but in a much smaller package. I'm not telling you to get one. But a slew limiter can give you a much more musical transition between CV signals that suddenly change in voltage. For the most part, slew limiters come in two varieties: one that slews rising and falling slopes the same (basic), one that slews rising and falling slopes independently (like Make Noise Maths or Befaco Rampage). The Mimetic responds to gates/triggers to advance to the next step. So you could supply those with the Squarp in any rhythm you find useful.
I'm still on the fence about the Wavetable synth. I dug a little deeper. It seems that it can only work with internal wavetables, though Erica does have a ROM expander for them. Without hearing all of the wavetables... I can't really pass much judgment on it... but it seems to be redundant if you have a Plaits module. It's not a wavetable synth, but you can get variations on a sound in the same manner (different architectures but you can index variation(s) of a sound in the same manner).
The Noise Engineering BIA is nice. I own one as well. The Noise Engineering stuff can be a little harsh sounding sometimes. But all of those strange harmonics might be nice if you're drowning the original signal in reverb as drone fodder.
I think the bottom line is that you might want to try a little harder to make something useful with the Erica before giving up on it. Not because I think it's a great module or not a great module, but it might be an opportunity to flex/grow your knowledge even if you ultimately dump it.