Clone of istockphoto or dreamstime

This website will be a clone of istockphoto,dreamstime or similar Stock photography site . Users will be able to upload photos and it will go into an admin section for review. Once photo is reviewed it will be available for sale at 5 price points which will be 5 different sizes. Payment should be through paypal and cc. Credits purchased must be added automatically to the user's account upon payment completion. The admin panel must allow the administrator to setup credits packages and their price. Program must create thumbnails of pictures. Also must create a preview picture with our watermark on it. The thumbnails will allow quicker browsing through the archive. The preview picture will allow the user to view the actual image, but with our watermark to prevent people from simply saving the pictuer and not using credits to download it. You can see an example of this function on [login to view URL] basically I need the same setup. The pictures download must be secure since I don't want people to be able to simply figure out the path of where the pictures are and then steal them without using their credits. PLEASE BID ONLY IF YOU CAN PROVIDE AN EXACT CLONE WITH THE ALL ITS FEATURES If you don't have yet a similar product, please don't make bid. Happy bidding and good luck.