I hope noone minds me reviving this, but I would hate to see such a fine example of a roleplaying system not come to its fruition!
39. Four is the standard number of players, but other numbers are allowed, though no more players shall be allowed than the number 9.5 - that is to say, 9 players, but a 10th can sneak in if they are particularly short. If the number of players is ODD, players should rotate their characters to the player on their left. If the number of players is 9.5, the characters are reallocated randomly and one of them has had their gender switched.