Go slowly... it is not a race
personally instead of 6 distings, I'd get one and play with it a while - it's a great module but a lot of people don't like it as it has (some) menu diving
I think you have a poor ratio of utility modules to 'feature' modules - but if you go slowly you can work that out
I'd go for a cheaper smaller mixer than the 6->2 mixer for that purpose
you almost definitely need more vcas (the ones on the WMD PM are great for your audio, but what about modulation??) - I'd get something like a veils or intellijel quad cascading vca (and replace 3 distings with it)
how are you going to sequence the bassline etc w v/oct?
"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