You're not the first. There have been a few students i've seen here at HBT developing their business models for classes. Use the search feature and you should be able to pinpoint those threads. This will keep us from going over old information/territory.
You might also check in with the actual professional brewing community. Ask your questions again over at probrewer: http://www.probrewer.com/
Beer so good, it's frightening.
2014: Seven Heavens Series One: Vilon, Mystic Melomel, Skeeter Pee.