With the number of voices planned in this rack, I think your rig would definitely benefit from a mixer (the passive multi is definitely insufficient) and probably a few more utilities and as the saying goes, you never have too many vca's. Your math alone probably won't cut it.
-- Oroboros
Thanks for the feedback! That's a good point about strengthening the mixer/utility game for this. While I was thinking I wouldn't use all the voices all the time it would be better to be more flexible. I can probably sacrifice a few modules (or just use a bigger case, haha). For example, I could hold off on the Data and replace it with something more useful.