Looking for Designers and Coders to Create Website With Mentioned Requirements

I am looking for some serious designers and coders out there. I need a site to be built like, if I share the post of certain characters (Max 140 Characters) our server in back-end should automatically update (submit) the same thing to different social networking sites in real time. They should also have an option to schedule posts, where they can schedule their status. They should give us access to Facebook Profile, Twitter, Facebook Pages, Stumbleupon, Reddit etc. (Total of 25 Social Bookmarking sites which you'll get later). You need to design and code the site entirely, with the above mentioned accessing features. 1. We should be able to add few more Social bookmarking sites in feature. 2. The design should be integrated with 4 Ad Units (in high CTR places like navbar and others in body). 3. Whole site will be having two types of accounts : Free and Premium (We should be having access to modify and manage user accounts in back-end) 4. Payment Gateway should be integrated : Paypal and Credit Card. Reference sites : [login to view URL] and [login to view URL] (which is not live now, you can access it from [login to view URL]://[login to view URL])