Ecommerce + website with virtual money in Drupal 7

I need an e-commerce website. It is for a gaming communauty. Our current website is running on Drupal 7. . Needed : design conception, website, e-commerce part + some specific module conception. User profile to create too ( should include -> profile, roster, account balance, history of event ) Mandatory : Drupal7 system. Need to use the drupal API and engine. All work should be commented, and a document with all maintenance, and daily procedures should be made. Specificity of the website : Languages : the website should be available in several languages French, UK, Russian, Spanish, German ( possibility to add more languages with time). Need to use the drupal specificity... Currency : all the website will work with a virtual money called credit Ecommerce : a shop will sale product, services and credits. User profile : User should be able to get all his information about his account ( balance, credit, history...) Auction : an auction system should be created. Auction will be created by us. You win the auction if nobody make a bid on you in the next 2 minutes. We need to get 3 differents kind of auctions system. News : Possibility to earn credits if your news/articles/videos is selected to be published. Roster of members : in its profile, a user should be able to create a sheet for its game character, with some specific fields ( specific to the game) . An administrative back end should be able to create new game category with specific fields. When you select a game, you should be able to see all the character created in this category. You can use one of your character to register to an event. This roster should use the specificity of Drupal 7. Important : Work on drupal 7. Need an EXPERT on this CMS. If just amateur, or no knowledge, do not bid.