PHP / MySQL Script Using Google OAuth 2.0 API to access data

I want to build a site to display Google analytics data like seethestats.com. This is done using google OAuth 2.0 API with ajax in php script with MySQL database. You need to have experience and understand Google OAuth 2.0 API and Google Analytics to code this script. If you think this is an easy job for you, and you have past work to show me that you really know Google OAuth 2.0 API and Google Analytics, please place you bid.