144565 Custom Social Networking site

We need someone very experienced with php and other current programming methods to program a custom social networking site, similar to a myspace with youtube integrated and other features, photo albums with commenting, comments on pages, picture rating system, point system, easily customizable for the user etc. Must be programmed flawlessly, design will be supplied you must put it all together. Must be easily installed, database must be easily exported and imported for backup, must be secure, must be able to handle a lot of bandwith without constantly crashing and giving errors like myspace does. This site will basically take the best features of facebook, myspace, youtube and rating sites in combine them all into one, and it must comply to the latest web standards. We would like to have an explanation of this code in order to be able to update the site with new content. This project will be made exclusively for our use with an agreement that will exclude redistributing this code. We are flexible with the price so let us know the exact resources you need if they are above the price range stated. We would like to have a business relationship with the person programming this site to handle future adjustments, additions and troubleshooting.