How to make an Arena work?, Suggestions would be appreciated Options

[Ryuga]

So I was trying to come up with a proper template for an Arena RP. For those of you who are unaware, an Arena is just like what is sounds: a RP where characters duke it out. No real underlying story, just a bunch of guys beating the daylights out of one another.

In a seperate site, I saw an Arena which was broken down into multiple topics. There was the Sign-up Discussion topic of course, but each fight against two players had its own seperate topic. The winner of the fight was judged by other players of the Arena based on the quality of the posts, before the topic was closed and archived.

Of course, I don't think the RP community of RRR is big enough for this kind of system is viable.
I was thinking along the lines of having a signup topic, an Exhibition topic where anyone can battle whoever else feels like fighting, and possibly a Tournament topic where we winning and losing is important towards getting prize or something.
As for determining the winners, I was thinking the Exhibition topic would have to go on the honor system, where the two players can work out the winner for themselves. Don't think a third party would be interested in reading through posts completely unrelated to them and all. The Tournament topic on the other hand, will require a panel of judges or something to that effect. I still havn't worked out an optimal system, so I can't say much more than that.

So I would like some suggestions to how we can make this work. Maybe get a tally of how many people are interested in this sort of thing. Or, if you just think an Arena would not be viable in RRR period, than also post your comments and criticism.