Actually, I see no need for either buffered multiple in this build. You don't exactly have loads of destinations for scaling-critical CV, so since the buffers aren't needed, I'd suggest using inline passive mults instead. Keep the Links, as you've got some need for the basic mixing/distro capabilities it has.
After pulling the PipSlope and both buffs out, this leaves 10 hp. So, down at the right end of the bottom row, add a proper stereo mixer. My suggestion would be the 4ms Listen Four, which gives you two mono inputs with manual panning and two stereo inputs (useful given the amount of potential stereo paths in here), line-level stereo outs, a headphone preamp, and a ganged stereo main level. That's really about the only thing that I see seriously lacking here.