Could you buy anything at the tradeshows like lords?
I think there could be a few ways of doing this but here are my suggestions...
Pick 4-5 cities (hubs) and spread the word that you are coming so you have a day at each city.
Find cheap locations to host the show, keep it free enty or if you charge an entry then have a draw for entrants to win a bat or something.
forum members from the area donate some of their time to help setup, break down, security, logistics etc and in return batmakers could offer them a free refurb or a discount..
you would have to market it using word or mouth and maybe contacting local leagues...especially if there are exclusive offers to be had while buying at the show it would bring in a lot more ppl...
downside is companies that take part would be on the road for a week or longer..upside is by going to various cities you are engaging ppl who are interested but not willing to travel too far..