I need people to be able to sell paid profile subscriptions. The person can set their subscription price and then select whether each post is for paid subscribers or for the public. If it is for paid subscribers, the person will see a message or a photo replacement (that I can change) telling people to pay to subscribe to see the content. It should work with all apps. This custom app should have permissions options so the site admin can choose which membership level can use the fans app. It should work with the standard UNA payment app.