Design Contest Website + Extra

I am looking to have a custom design contest website designed similar in features to 99designs.com. It must have all the features as [login to view URL] has. However, instead of targeting the "logo" design market. This site should be focused on holding design contests specifically for designing advertisements. The primary additional feature I want designed over an above the features of [login to view URL] is a method by which the contest holder can determine the contest winner by split testing all entries (or selected entries) and determining which advertisement design gets the best conversion ratio. In order to accomplish this feature the contest holder should be given two choices: a) Test the ads on his/her site: in which case it should generate a simple code he can place on his/her website that will rotate all the ads and calculate the Click through Ratio of all the ads and display the data on our site. b) He/She can buy impressions from our site and we will automatically run the rotation of ad entries and determine the Click Through Ratio With this option what needs to be kept in mind is, we will be buying traffic from sites such as [login to view URL] and hence we need an easy way to integrate our ad code with their campaign system. There are various ad formats that should be supported, these include: 1) Graphic ads 2) Flash ads 3) Text ads 4) Video ads 5) Landing pages (full html ads) 6) Audio ads 7) Mobile ads