I will need to see a preview of exactly what you need. ( Maybe show me an eBay auction template from someone who has one already ) so I get a better understanding as to what you need.
As for a price, I am not sure because I don't understand what you need really.
Time frame, Less then 24 hours. The reason I can give you this information and not any other is because I can design an entire website in less then 24 hours. So the kind of template you need shouldn't take any longer.
Here is my portfolio
http://www.jerome118.deviantart.com/gallery
