Opening a power tumbling gym?

Hello, I am graduating from college with my BA in English with Teacher cert. in the spring. I am looking at starting up a tumbling gym in the next 2 years. By then I hope to have my certificate as an office istant as well (make sure i know how to run a business before I have to learn from the school of hard knocks). Any-who... I have been an istant coach for Tumbling and Trampoline for the past 8 years working at two gyms one private and the other as a part of a park district staff. I've worked with levels beginner-advanced (USTA) and levels from 1-10 (USAG). Now to get to my actual question, what should I be doing now to prepare to open a gym? I know I'll need a facility and equipment, but beyond that I am in the dark. If anyone can give me tips, ideas, suggestions they all would be greatly appreciated. THANKS :)