Reskinning of existing website in PHP according to existing design

We want to re-skin an existing auction site according to a new design. The site is coded in PHP and the task is to change the PHP code to render HTML/CSS accordingly. I will post the design once discussions start. The deadline for this project is fairly tight, about a week or so from the posting. Also, the current PHP code is in a bit of a state so only seasoned PHP-coders who feel that they dont get scared by messy code and can deliver within the time frame should reply.