As usual, I absolutely adore your vision here. You're quickly becoming one of my favorite game designers.
For other folks who are drawn to this game, here are a couple of articles that I think will nicely supplement this approach:
1. John Harper's piece titled "50/50 - A Game of Fictional Positioning":
https://docs.google.com/document/d/1NLD_KhZwrKRz3sIquZDSW_Wx__7My6Kdg1Jbk6hF7Mw/...
2. Samuel Doebler's article titled "Advantage and Impact":
https://dreamingdragonslayer.com/2020/03/28/advantage-and-impact/