Clips4sale.com Clone

I need a [login to view URL] clone script. I need to be able to sell 5 min video clips and have the ability to upload the vids and smal preview. I will be using ccbill cilling and would need the abilty to enter the payment code into the site, so the end user and click the video to buy, takes them to my ccbill payment screen and then do the video to download. If anyone has a screipt like this already that would be fine also......