Passive mults are maybe ok for clocks and gates, but using them for cv and envelopes makes things unpredictable
(not in the good way) and makes keeping things "in tune" futile.
Drop the passive mults for Rides in the Storm QAMs. They're terrific, well made and cheap for what they do in 4hp.
Were you going to use a mult to combine audio down by the Doepfer Mix? Don't do that.
And don't use those patch cables with LEDs in them, except maybe one for debugging. They are evil.

Give consideration to what's mono and what's stereo in your signal paths (looking at the Ghost and the M4s)
and if you'll be throwing away some of what you're generating. I haven't tried the Ghost, it looks really fun.
It looks like you have a certain patch/path in mind. But what about the 2nd, 3rd, 4th... patches?
Will this have what you need?

Look at the Doepfer A-135-2 for a Quad Mixer/VCA.
Seems light on filters and LFOs.
Why does everyone like Maths? I don't get it.
Every box could use an ALM Pamela's Pro Workout.
Take a look at the Frap Tools 321 and 333 to see how they might fit in to your ideas.
Nazca Noodles are the only patch cables I use. They are perfection.
Same with Befaco Knurlies. Accept no sustitutes.
That Verbos sure takes up a lot of your space and budget for the one trick you get out of it.

I like where you're headed with this.
Tailwinds.

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