Sorry, I didn't intend for this to be public. I'm planning my first modular system and my comments are notes to myself for the various options.
This plan is to expand a Moog Grandmother. I'm just building this for fun as a new hobby; I've always wanted to learn to play an instrument and the idea of "building" my own is compelling. I need to set an upper size/price limit so I don't get carried away. I chose a 104 HP Powered Make Noise Skiff because it can sit behind the Grandmother. All I really wanted to add to the Grandmother is granular synthesis, but of course I have found other modules that interest me along the way. Now I just need to determine the best balance between the modules I would like to have and utilities. I'm OK with the 104 HP limit, I may just have to scale back the number of voices/effects. Limits are good for creativity.