I would get rid of the mini synth voice and add some logic modules and mults/mixer like Kinks and Links. These let you do a lot with just one voice module. I also would get rid of Mordax Data while a great module it is massive and you can get a smaller clock module like Pamela New Workout and more support modules and modulation like 0chd. Mordax would be fine in a massive case but not here. Perhaps a matrix mixer and sequential switch as well by ditching another voice module? In my setup, I have 4 sound sources, 2 filters and the rest of support modules like clock, mixer, Hex VCA, switch, logic, mults and so forth for a 6U case. I find that 70-80% of the rack space is best used for support tools and 20-30% for the do cool voice modules/filters. I would get rid of Metropolis and get a smaller sequencer like Mimetic Digitalis or use external sequencer and use that space for useful support modules.