Open Cart Auction Module

Hi All, I need an Auction Module for my website with all the facilities available on Auction websites and Buy now. Sellers can add products and they can be rated as well as buyers. Everything must be monitored from the admin panel also. This module most be easy for customers and not complicating. More details will be given later if required. Please i need only professional programmers with past experience in developing modules, and i need samples or examples. Thanks