Build a Website

I need to set up a server serving hosting sort of a shop - I need to givce user access to some data in my database. I need someone to prepare me functionalities, not design. An effect is server I'll be able to log in (using git, or terminal) and recode files, displaying white pages with black letters and forms for the users to fill their data. Desired functionalities in steps: 1. Frontend page with "LOG IN/REGISTER" button. 2. UMS, preferred with OpenID/Facebook connect/G+. 3. On user panel a content available for given user (let's say access to links stored in database). 4. Possibility of ordering access to new content (using Polish dotpay system - example of simple webpage and php script I need to be translated to python and embedded in Django server) - if something is not clear in this step, please let me know, I will elaborate. 5. Possibility to enter 1-time code unlocking some content (accepted codes will be provided as either text file, or imported to server's postgresql db).