115706 site similar to getacoder

Hi Our client would like to develop a website an exact 100% clone of [login to view URL], in all A to Z features, from subscription to payment, the only difference is, this site is going to be for web design/development/coding related projects only. Main issues: site security and speed (most imp), admin panel and front-end design sophistication and ease of commands, strength in database to serverside and serverside to clientside scripts. We will be using php and mysql. we would like to wait for a few days before we decide, to see how the bidding is going. please reply with timescales and price, and feel free to ask any further details of the project! Thanks