I am no pro cook by any means but I have tried a method similar to CHAPLAINBILL for some backyard BBQ fundraiser and marketing events for our business we hold at our place throughout the summer. It does work quite well given the circumstances. I guess maybe your plan would require a more long term solution for a successful business. Call up a few places in the next city over to see what their strategy is. I'm sure they'd be happy to help you out!
Dillon - www.windowcleaningwinnipeg.com