Dear Bassman1805,
Thank you for taking the time to reply. There are definitely some things to consider.
To address the 3x MIA and the Pam's: As far as modulation sources go, part of my decision in including Pam's were the LFO outputs. I know that the module has much more capabilities than just an 8x clock output. I think as far as getting the most value of the module as I can is by using the Pam's in conjunction with the 3x MIA with the range of features. Envelopes, even.
Not only that, but I think the sheer range of features (noneuclidian rhythm stands out to me) will help me to narrow down my musical vision for the future.
Your comment on a matrix mixer makes sense. At this point in my build, I am approaching my budget, and I am fairly happy with my modules otherwise, but I appreciate the advice and I will think on options.
At the moment, there is no intention to expand, but as far as costs go and managing the 'invisible spaghetti' I think a powered case might be a smart option.
Lots to think about...
(Also, got lucky with filling out the first row exactly to 104hp.)
Thank you!