like myspace.com or yub.com website

I am looking for profesional that can create website that has simillar functions as [login to view URL] or [login to view URL] website. This will Not be dating website but more like Social networking website. Functionality of the site will be similar to these sites and I will need full coding and layout and programming to be done in php/mysql. The objective of the project is to build a social networking site similar to popular like myspace, yub, friendster or facebook. The site be a social networking platform where users will be able to create their profile, browse / search for people and view their profiles, invite friends, send messages, create their blog, take part in groups and forums. The site will have a password protected admin area for all administrative functions required to maintain the site. This includes member management, classified management, banner management and management of forums, groups etc. Let me know if you are able to do this and how long will take to complete this project. Also cost? I have some sample design that I am working on the look of the site and features/categories. Give me your estimate. I appreciate your time and if you have samples of this work that you already completed please include that in proposal. Thanks