I'd get a bigger case
also I'd want full size versions of the MI modules (I have them and they are nice to use - I can imagine anything smaller being a bit fiddly
if's definitely possible you would want more vcas (get a quad cascading one - veils or intellijel are good starter vcas) and attenuators (clouds or derivitive can easily take up 4 on it's own)
focus more on effects/modulation sources and utilities (especially as you already have so many voices outside the rack)
there seems to me to be some overlap between things (do you really need midi in and marbles??) and a few things I'd want missing (mostly utiltities)
I'd also try to work out how you'd use it and in conjunction with your existing semis before buying anything
and when you do buy - only get as little as you can - ie a minimum viable synth - learn it well and then add modules sparingly, learning each modules ins and outs before you get another
NB disting is one of those modules that either you hate (it's too complicated because it has a menu) or find indispensable - only you can tell
"some of the best base-level info to remember can be found in Jim's sigfile" @Lugia
Utility modules are the dull polish that makes the shiny modules actually shine!!!
sound sources < sound modifiers < modulation sources < utilities