One of the key questions when you set up a Kickstarter is your funding goal. Where do you set it so that you can accomplish what you need to accomplish and bring your product to market? How do you structure the reward levels so that they make sense?
I'm deeply indebted to Jamey Stegmaier's excellent Kickstarter blog for his advice on establishing reward levels and budgets. While his blog focuses on board games, which do have some different issues than a role playing game book, the principles remain the same.