Web-site required

I need a new-site to be built - it will be hosted on a Web host's server. I need to be able to offer users the ability to buy downloadable PDF documents. Paypal and Google Analytics will need to be supported. I should have the ability to upload, or remove, the PDF documents. The user should only be able to download a document after it has been paid for. The users should have the ability to order more than one document at a time. After full payment has been received, a unique link needs to be generated which enables a user to download the PDF document. This link should be unique per user/document and should expire after 12 hours. Cart processing should be supported. There should be 8 pages on the site: Home Sales pages X 5 A page where I can enter text Support Page A database is needed to track purchase details: User email address Document downloaded Date Payment Amount