Question about the latest build:

You have the Quadra, the Quad LFO, and the Batumi. That's three units each with four LFO-ish functions. Are you planning on needing that many or are they redundant?

You mentioned sequencing but I don't see anything that does any serious sequencing onboard. Maybe that's not where you want to go. But check out the Eloquencer or if you can find a decent builder the Westlicht Performer. I just bought a Performer but I have to reflow some of the work and replace a couple of damaged CV jacks. But it's a great sequencer. I also have a 1010 Music Toolbox. I like it but the most current firmware kind of blows chunks (why I got the Performer).