Hey, welcome! Glad you've taken the plunge to put a rack out and ask for feedback.
A few general points, first:
* Please provide a link to the rack itself, rather than a jpg. That way we can click on your rack and see what modules you have and maybe clone/redesign the rack.
* Can you clarify which of these modules you already own versus which you are planning to get?
* Agree with your assessment about modulators and utiltiies. We can suggest some once we get a better sense of the above.
Good luck!