The ACL is 6hp, Buffs are 2hp, so it was for conserving space and distributing them where you’d be most likely to use them—close to the vcas, where you could split a modulator to control multiple amplitudes; close to the LFOs and envelopes, where you could split them to control multiple parameters; and close to a sound source, where you could split it for parallel routing. Justa space thing.
You can share your build by inserting the link and it will be displayed as a picture. That will save you having to take a jpg screenshot. But it sounds like you’ve mostly got this figured out, just the vcas remain, yes?