Somebody might get some value out of going thu the articles over on www.24fightingchickens.com
The site owner has some really good and depending on your POV some really out of the box ideas about martial arts and business--and by "out of the box" I mean actually using normal business models and approachs to the martial arts.
The sections on how to run a karate club are gold.
Also some real food for thought about the motivation and reasons for opening and running a club/school.
You may read some opinions and POV that you seriously disagree with--but its a really good read none-the-less.