The only thing I could add to this comprehensive advice is make sure you have enough capital available to secure all the equipment you need, all the promotion you need and pay all the debts you will incur for at least twelve months. You cannot start a business without cash, a little pot of gold and history tells me that in this industry that nest egg should be around $50,000. If you are not sure how to calculate this see an accountant. See an accountant anyway because 80% of your business will depend on it.