auctiva.com clone

hi im looking to start a project which would be a clone of [login to view URL] Im not sure as to what areas of expertise this job would require but i am interested in finding out so that i can determine a starting point. Basically i want a very basic form of a clone to this site so that i could build up to being able to offer more services like auctiva does. Please post bids and also comments so that I will know what this job will require as far as time, money and logistics. Thanks!