[Crazy Idea][Game Design] Sports 20XX

So... I'm not sure where the idea came from (if it was you, please tell me) but I decided the other day to invent a game system for simulating Sports as a tactical board game... but not like individual sports so much as ALL sports such that you could conceivably mix and match rules and mechanics and improve on them... this was meant to play on the ironic hipster geeky feigned ignorance of "sportsballs" without getting in the way of actual geeky sports fans who like to play board games.

I pinged +David Dougall and +Marc Reside and shared a Google Doc with the title "Sports 20XX" amd proceeded to brainstorm mechanics and start modeling how I see sports as a board game.

Eight pages of rambling discussion, charts, tables, diagrams and research later I think I could probably sit down and play "Sports 20XX: Ice Hockey" well enough to start figuring out the actual practical game-play... and I made this nifty Ice Rink Map along the way...

I am now, however, at the part of the process where I remember that I am not really a board game designer yet (I don't count Impulse Poker and never finished designing any of the other games I've mind-sploded about in the past) so I have a few questions for people who make and/or play games.

Does this already exist and I'm wasting my time?
Would a turn-based strategy board game based on various sports be a thing you would want to try?
How long would you want a game of Turn-Based Ice Hockey to take?
How do I get from "mind-splosion" to "designed game"?
Do you want to help me in any concrete way for no-money?