Auction Style Website Needed

I would like an ebay style website. The platform would be simular to ebay but has some features from penny auction sites. I would like to know what the cost would be if this was built from ground up or what the cost would be if you modified my ebay script. ## Deliverables [login to view URL] requirements notice: As originally posted, this project does not have complete details. Should a dispute arise and this project go into arbitration "as is", the contract's vagueness might cause it to be interpreted against you, even though you were acting in good-faith. So for your protection, if you are interested in this project, please work-out and document the requirements onsite.