Mmm. Firstly, it's a bit late. Secondly, the vBookie system isn't wonderful. It's a good idea in theory, but in matches where it's obvious who's going to win, there's no point and in matches where it's 50/50, both outcomes would have the same odds, meaning the system can be beaten and you can't lose.
Actually, that'd be the best way to do it. Rather than have a bet for who would win, it should be on how the match would be one (pinfall, submission, DQ etc), as then the odds would be able to be different (seeing as 90% of matches are won via pinfall).