Meta Search Engine

I want someone to develop a meta search engine like dogpile[dot]com . The system must merge all the major search engine results(Google, MSN, Yahoo and ASK) and show the result into a single page. This will be the base of the project. We want some changes in how the system will scroll the results and move to next/previous pages. So we want someone with some good AJAX skills. I want a demo of the dogpile clone working into the PM before I choose the work provider. I will not consider anyone who did not send a demo.