For FH-2 polyphonic playing you could setup in the configuration tool:
Type: Poly, 2 Voices;
Per Voice Ouputs: CV, Gate or Trigger, Velocity(?) and Envelope(?). ( 4 x 4 )
Then you'd have a full 8 expander outputs for whatever—the filter and repeater, one of the Noise Engineering modules, bitbox?You have two oscillators yes, so to play your rig polyphonically you'd have to patch both oscillators and mix them down to a single centred output so you can then bring them into your reverb, delay effects and make them stereo. Otherwise you'll have two voices, one in left side, one in right—probably not what you want. Of course you can record each voice separately and have as many layers as you want in your DAW. But you basically have two subtractive signal paths osc/bb>filter>fx and osc/bb>fx>filter, so this is not gonna be complicated.
The bitbox does multisample polyphony too with MIDI, so you have that option with your Keystep.
If you dropped an expander there is the Disting, I don't have it but it is VERY POPULAR—44128 racks.
https://www.modulargrid.net/e/expert-sleepers-disting-mk4or since you're doing sound design you could look into the Happy Nerding FX—also well liked and popular, also something I don't have, haha. https://www.modulargrid.net/e/happy-nerding-fx-aid-black-gold
Ultimately it comes down to you. Personally I'd probably not devote so much hp in a small case to a reverb and two different delays... but your name is Echo so that's your thing. Do your thing.
-- Toccata
Thanks for the feedback. There's 3 oscillators in the system when you count the basimilus. Plus I have a mother 32 so that's 4 voices. Technically the maths and I think mimeo could be used as a voice as well. So FH2 plus 1 expander gives me 3 voices + 4 outputs leftover for modulation. That's probably enough. I also might mess with MPE controllers...so I just wanted to have enough outputs for that. I plan on playing it polyphonically...saving those parts as samples into bitbox...looping a variety of those and reusing the oscillators for other things afterwards.
In terms of too many delay and reverb...I agree. I own the mimeophon already...but I'm very intrigued by Nautilus and definitely would like to pick that up. I heard they are very different and I'd like the sound design possibilities of Nautilus...it has distortion etc. For reverb, I wanted the starlab...but it's too large to be practical in my case...and wouldn't fit with the modules I currently own. So the NE reverb was what I came up with as a substitute....perhaps it isn't necessary and I can just use DAW reverb.
I will check out those modules. I just don't want to complete my case and be missing something that is important.
Cheers,