Auction Listing Website With CMS Needed

We require a car auction listing website based on: [login to view URL] 1. We need a unique design created for the website based on: [login to view URL] [login to view URL] 2. We need the site to have a full Content Management System so that we can add/edit/delete listings and photos. We also need to be able to manage pages and advertising banners too. 3. Within the CMS we need to be able to manage advertising banner campaigns (rotating banners and vertical and horizontal banners) 4. Users need to be able to sign up to be able to list their cars, information and images. 5. There needs to be an enquiry form so that customers can contact sellers directly, but not reveal their email address (e.g. [login to view URL]) 6. We need the site to have the same sections and layout as [login to view URL] We also need to be able to add and edit sections and categories. Please examine and investigate the website thoroughly as this is what we want to re-create: [login to view URL] Please include your portfolio and an estimation of time to completion. Also if you have created a similar site in the past please include links. Thank you.