Multilingual facebook clone

If you already have the clone/script/a web site working, please provide links to a working demo.

We will use: linux(debian), apache2, mysql5, php5 and code must be clear and clean.

Cache system: The program must generate and save all pages. If a page is XX minutes old, it must be generated a new one and replace this page. This is very important and it must work fine.

We need a web design too. Pure Web 2.0 design please. Provide design links / web examples to choose one.

We want an exact clone of basic Facebook without apps.

We will attach project details.

We are looking for a long term relationship. This is just a first step.