Build a Website

I am searching someone to develope a website very similar to freelancer.com but lighter (simpler)` People logged in can make request for quotations same way as [login to view URL] and loged in suppliers can make quotes to those requests for quotations are interested in. Supliers logged in must recive an alert in mail when someone is looking for quotation and have a limit of quotes to do per month. I dont need to have money acounts for users in a first step because the page is only to make contact and send quotations. Bussines will not be colsed inside the webpage. Next step is a mobile app so it must be compatible-