SeaDuced
Searious
Tuff E Nuff

They pretty much cover what you want.

Advance bookings don't help that much. Face to face works the best. If you try to play one off the other you won't get anything so pick one that looks good to you.

Google any of the above names and add +Belize and you can find them. If they don't respond click on my name and send me a private message and I'll contact them for you (send me your e-mail in your PM).