Few considerations, Sam.
- Midnight SA didn't start, we ran DCS first, I was planning to run SA later, but I'm more than happy to give Nuclear precedence
- I love your 1-kit-no-frills set, but people love options, and love to spend exactly for what they need (someone asked me for a poker kit for the Midnight set...). I would consider splitting the numpad and the tsangan. Also they will probably be asking for ergodox too and more spacebars.
- SP system made everyone able to run a GB and we've been flooded lately. Last year a well designed and organized GB could easily reach at least 100 tier, now it has become quite a challenge, so in your forecast I would start from 50.