It seems like you all spend a lot of money on these tournaments.
Why don't you buy your own machines and everyone could contribute to the cost. Then you could set up the tournament any way you like and not have to go begging to the casinos.
You could even design and make the strikes and give prizes for the best design or put the winners name on it.
Get out of the casinos and do something daring. Then watch the casinos come begging to you.