Sony eBook Store Clone

This project can be done in PHP or ASP.NET: We are working on an eBook store project. We want sellers to have accounts, where they can upload books in their entirity or on a chapter basis. We then want to allow sellers to set prices for their books, which can then be downloaded in different formats. (We will take care of the scripting for conversion of the ebooks, but we need the options for different formats to be downloaded) Buyers will be able to purchase books or chapters of a book as they come out, and will have a "bookshelf" area where they can keep track and re-download their purchased items. eBooks need to have a "preview" of the first 3 chapters for free. This could be done via pdf or an online flash reader. Buyers also need to be able to review books, with text and a five star rating. The site owner will get a percentage of sales. A seller will be paid monthly. This needs to be taken care of on a back end. The site will accept only paypal for now, and will send sellers their payments via paypal. The back end side will be to manage approval of new books/chapters submitted. It will also track seller payments, book/chapter sales, and site income. Buyer and Seller accounts need to be managed as well. There will be no monthly "fees" to be a member either way. Please email with further questions about the project. We are looking for someone who can complete everything listed, and has good prior experience with examples of work done.