If quilting is your dream and your passion, don't pass up the opportunity to open your own shop and don't let fear rob you of your dream. Your biggest challenge of getting the building has already come in your favor and now comes the elbow work. You will overcome the doubts as you come closer to the opening of your store. Ask friends and family if they could give a few hours of their time to help you with cleanup and painting. Get a reputable contractor for the repairs and before you know it you will be setting up store. Please post the address and hopefully the members here can stop by and shop. All I know is that if you do something you love then it won't feel like work. Your passion will keep you motivated and that will make you successful.
Good luck and I will pray for you.