Create Wordpress Site from existing site

I have an existing site that I want to upgrade to a Wordpress layout. It needs to have the same search functionality to display a list of people but we also need to have some changes done to the layout of certain pages. For bidding purposes, take a look at [login to view URL] and determine what it would cost to build it as a Wordpress site. From there, there are just a few pages that will be merged into other pages and a few style changes here and there. At most the "changes" shouldn't be more than 20 hours of work at most.