First question: how do you define "Fun"? What kind of music do you want to make? That question should dictate every choice you make. That said...
You're limiting yourself by sticking solely with two producers (Mutable Instruments/Tip Top). There are so many options out there to add variety into your setup. Also, once you start putting 3 2hp VCAs into your rack, consider whether another module might give you more bang for you buck, like, say, the Intellijel Quad VCA.
Instead of putting a system together in this fashion, perhaps take it a piece at a time. For example, you've got the Tip Top Circadian Rhythms. Ok...have you watched every video you could find about the various trigger modules out there? Are you able to go to a store to try them out? (Not easy unless you live in a major city, I understand.) On the drums, have you looked at options from WMD, Intellijel, Mutable, etc.? As you watch videos about various modules, you'll have a much better sense as to whether you're on the right track.