a site the sell photo's an let people order there own

Make an extension of the exciting joomla page currently hosted at [login to view URL] The extension must consist of two parts. part 1: a webshop to sell photo's taken at shoots The customer can order the photo's as download, printed on various materials or products. Payment mus be with IDEAL (a dutch paymentgateway) or at teh shop There must be a way to protect a map with a password The staff must be able to ad new ways to print or addept the current one in price and of course at the photo's to the maps. IF possible an automated way to ad an watermark the the preview picture. Part 2: the customer must be albe to upload pictures and order them in one of many formats for print The staff must be able to ad new print formats and change the price of the formats Payment by IDEAL or in the shop