John,
While you are absolutely correct in your observations, the options you outline all will be problematic for some members, I think.
Serious consideration should be given to a Round Robin format that concludes with a SINGLE elimination, eight man finals on Sunday, that requires only three rounds.
Friday and Saturday play is eight groups where each player plays each other player in hs group, and every body gets to play all day long for two days. No one is eliminated until Sunday.
For a 32 player field, eight groups of 4 each could play 21 games per man in 16 hours of play (allowing 45 minutes per game).
No rule changes, shot clocks, or all night play required. Every player is quaranteed a minimum of 21 games. And, if the field grows to 40 or 48 it is easy to adjust with no problem.
It is too easy to create a "unique" and enjoyable tournament where everybody gets a lot of play, for us to be twisting ourselves and the game into pretzels like we are doing.
Something to think about.