Build a freelance web similar to elance/guru.com

Hi, We need a powerful freelance website script based on [login to view URL] or [login to view URL] with powerful backend as well. Features of the web are more or less the same, but some modification are needed. Web installation should be included. Demo link would be preferred. Bid only with related experience, no kubelance, no ilance. Only bidders have over 20 feedbacks will be considered. I will send you some layout draft of web to let you have an idea of what we want. If you are the winner, we will treat you as partner to coorporate with in long term.