I periodically get down to Peterbollox so, if the date coincides with a visit, I'd probably turn up.
I noticed in the .doc that you listed the Key Theatre; do you have a contact in the management, or something like that? Or are you only at the blue sky thinking stage? I ask because, unless you know someone in the world of theatre who can advise you how to get your event tagged into some kind of publicly/charitably funded program of local events, you literally have absolutely no chance on this earth of being able to afford to hire the place.
I'm not volunteering for any role in putting this event on you understand, but if you want me to I can have a word with somebody I know in theatre and see if any contacts or other useful info crops up, OK?