Thanks for your input, Bubblefunk.
The System 1m is in there because I already own it. Have for a while. It will probably get bumped from the rack when I get to the point where I need the space. It works well as a non-eurorack unit where I can take advantage of its (somewhat limited) polyphony for chords. (And a light show when it goes to sleep.)
Pamelas New Workout and the Shapeshifter both look really interesting. I'm bookmarking those for the future. The information I've gotten here, YouTube and the modular subreddit have been very helpful. I've settled on this as the beginnings of my setup.
The Distings and the Polaris are on backorder, but I started playing with the rest of it for the first time last night. I have got a lot to learn!