I couldn't give you a price without knowing how many pages there are and how many customization you have done. If you give me FTP access I can take a look and give you an estimate.
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.