Scheduleing games with multiple league champs

[Torontorock]

Have been trying to manually schedule series with championship teams from two (or more) completely seperate leagues after thier own championship series have concluded in order to have an "ultimate champion" but haven't been able to swing it to my satisfaction. Was wondering if any experienced users might have suggestions that I haven't thought of (OOTP8 btw). EXAMPLE: I created two totally seperate leagues, the ABL and the NBL (starting year 2007). I control a team in the ABL. Both leagues have standard 162 game schedule and playoffs. After the playoffs are over and both league champions have been decided (by October 20th lets say), I would like to add on an extra series between the two league champs to decide a "world champ". The problem is that the schedule editor won't let me add games in the same year (2007). I would like to start this "super series" on Oct. 22nd 2007 but the schedule editor will only let me add games in the year 2008 (or 2009). I suppose I could do this but players file for free-agency late in 2007 and players retire as well so championship teams will most likely not have thier "championship squad" on the field if I schedule this series in January 2008. Would eventually like to have 4 different leagues (American, Cuban, Japanese and Canadian) playing at the same time and then having the winners play for the "world championship". Any experienced users see if I'm missing something or is this scenario not doable at all? Thx for any help and or suggestions