Customise existing Drupal web site for another business

The Drupal website [login to view URL] needs to be restyled so it suits a completely different kind of business (cafe). So basically consider anything that is specific to the business as stuff that needs to be changed: * styling of standard layout * background and rotating header images * logo * static page segments or pages * hard coded URL's We also would like to show links to social media at the top of each page (currently they only show at the bottom of the page). This task also applies to the existing web site.