Complete Freelancing website

Building a complete website for freelancing business just like freelancer.com with all features and services that freelancer.com offers. Some Major Functionality : 1. Posting and bidding on projects. 2. Posting and bidding on contests. 3. Different membership support with different pricing configuration. 4. Rating System. 5. Payment options integration. 6. Promoting projects and contests(featured , urgent , etc.). 7. Control panel for admins. Some Design requirements : 1. Using Standard design technologies (CSS , HTML,etc.). 2. Themes and colors that go with the existing logo. 3. English and Arabic Interface. 4. Support Arabic text. 5. Stable , handle high volume , secure , and fully configurable. Technology 1. .NET C# programming. 2. SQL SERVER database. General : 1. I need the source code and the artworks along with the website. 2. A software requirements Specification document need to be developed by the freelancer as a milestone and approved by me before going ahead. in simple words : Minimum requirements is everything freelancer.com has , Supporting Arabic.