Sports AHC: have the US and Canada play the same type of football

Last evening, ESPN2 featured back-to-back CFL games (BC at Montreal followed by Saskatchewan at Calgary). There are more than a few aspects of the Canadian game that as an American I find fascinating: e.g., multiple men in motion, the bigger field, the provision to score a single point, etc. Often, I've thought that there ought to be a single North American game with provisions like:
  • a still-bigger field (120 yds goal-to-goal x 60 yards wide; 20 yard end zones)
  • same scoring system as Canada
  • 6 downs to get 20 yards
  • multiple men in motion OK as is movement toward the line of scrimmage
  • 12 to a side
  • Goal posts 10 yds behind the goal line
Keep the rules largely US-based otherwise, and maybe add an entirely new means of scoring: call it a punt goal, wherein a punted ball that splits the uprights earns the kicking team 2 points and yields an immediate dead ball; the receiving team takes over at (say) its own 30.

Have at it and propose how we might get there, complete with pro football today featuring (let's say) the Toronto Argonauts playing the Philadelphia Eagles.
 
6 Down to 20 yards seems excesive, will allow experimentation in both Rush and Passing but would force more bomb/hail mary in the long term, that may be positive or negative depending how is played, for me, something like 12 to 4(so you need 10 full turns-first down to make touchdown if you got pulled back to your 1-yard and you need at least the first 3 downs to got 4 yard each before putting or got for it a 4th down).

Other would be one that are canadian staples.... unlimited Backfield Motion, alongside multiple men in motion that push athletism in all position to keep with the new more quick pace plus giving territory to the QB to move, that is mega risk-reward as loss yardage would be brutal.

The other and as much as Important...Not Fair Catching, either you catch the ball and ran with it or not catch it at all, the canadian 'rouge rule' still count so if you got the ball till your opponent goal zone that count as point and opponent must start a 1-yard, that make Unlimited Motion at bigger End zone vital for both running and passing game.

the rest are fine, maybe canadian and american college sign a mega NCAA early and we got a FBS that must end with the best of america vs best of canada? both competing for the grey cup? or maybe later in 40-50's the NFL or other league merge with CFL and later merged with NFL or AFL equivalent?
 
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