Here's an idea for completing your rack, keeping your goals in mind:
—Substituted the ACL Multi II for two 2HP Buff Mults (one black/one white);
—Upgraded the Disting MK4 to the EX;
—Swapped the Ochd for a Batumi with Poti Expander (not necessary);
—Switched the 2 Doepfer VCA's for a Zlob Vnlcursal VCA;

That's 6 VCAs and Sum, 4x3 or 2x6 Buffered Multis, 4 LFOs, and a 'suped-up' Disting.
ModularGrid Rack

Something to play with.