I'm with Boof on this one. Nice idea, but can't see it happening.
1) Who's going to organise it? There would be a lot of work in putting something like this on.
2) Where would you hold it? A suitable venue would be needed. Something like the Manchester Red Bull event that was run a few years ago would be ideal (i.e. bring the sport to the masses), but again would take a lot of organising.
3) When would you hold it? The Monday after Hawkstone is no good as it's a normal working day for folk.