apply css from new bootstrap template to HTML pages based on old css

Hi I have with me multiple web pages that are based on old css. I want you to replace the old css with new css- I have a new Twitter Bootstrap based template with me- I want you to apply styles from the Bootstrap template to the old multiple pages. The old pages include some shopping cart pages, and 3 wiki pages, as well as some other pages. Simple work for a good css developer-- I expect bids less than $50 Thanks, Arvind.