Development of Advanced Social Webpage for App Engine

We are building a social webpage with the following characteristics: * The webpage is to be developed for Google app engine and should have capability for global usage. * Community platform including creating detailed profiles (interests/checkboxes, keywords, profile photo and embedded videopresentations). * Profile search engine with filters to search user profiles. * Intrasite communication system for chatrequests/"contracts", PM's etc. (inspiration [login to view URL] chat system) * A feedback/ratingsystem between users * An integrated buy/sell credit system using a third party money transfer agent (eg. Google Checkout or PayPal). * A credittransfer system between users * Site integration and porting of already developed chatsystem (created in adobe flex, php and mysql). Module for complete siteadministration. * User activity log page * Extended profile link possibilities to other social platforms (Twitter, Facebook, Youtube, LinkedIn) * Extreme high security level regarding money transfer/credithandling. The project has well defined milestones and many visual siteexamples to support the development process. It will be very beneficial if you can show proof of your previous work that can illustrate your capabilities in relation to this project and provide relevant referrals.