Custom multi vendor Extensions for Magento

I need a custom multi vendor extensions for magento, which must have the following functionality. But the condition is.. It must be unique, no hack codes, no malicious codes, no copyright materials. Your final work will tested for quality and uniqueness by our team. if not, then it will not be accepted ============================================ The module facilitates with the below listed features: Store Owner: Allow various sellers to register and sell their products. Ability to make bulk payout to seller at a time and also can make payment for individual seller. Ability to view, approve, disapprove, update and delete seller requested product. Set commissions by fixed or percentage type. Set commissions for each sellers, each products and each product category. Configure seller public profile view. Ability to manage simple products, configurable products Ability to add, approve and disapprove sellers in one place. View the order placed by customer in one place. Ability to set global commission tax for sellers. Configure approval process for seller registration Seller: Interface to manage profile, products, orders, invoices, manifests and payments in one place. Add simple products and configurable products Ability to update their profile information, password information and view commission information. Ability to upload shop logo and add shop URL. Ability to view their orders, invoices, pending dispatches, manifests. Ability to view their payment history. Get instant notification about orders, products and payment from admin. Seller can able to export the stock and import the updated stock. Ability to add existing products from catalog. Buyer: Option to view the seller profile Buyer can able to view the products added in cart grouped by seller User can view all the details about the product given by the seller Option to configure products with available attributes-key features. Ability to check the stock availability of the product from the seller. Ability to view & compare prices from multiple sellers for a single product.