Replication of existing CAKE site

We have an existing cake website that is used as a document library. We need to "duplicate" this site, undertaking the following tasks: 1. Duplicate the existing site, but share the same DB with the existing. 2. Hide the admin part of the newly created site. 3. Update file downloads paths to point to the existing library (as this will be cross domain but on the same server) 4. Reskin into new branding (I attach the creative - but basically it will be header and footer) 5. Only show Pack Shots, Logo's and Tasting Notes for all brands (at present) Hide all others. 6. Users will link from another site into the library, so the site will need to check that a Cookie exists (that is created by the other site) and its value, and log them in automatically rather than requesting them to verify their age again. If the cookie does not exist, then they will need to verify their age. The current library is at: <[login to view URL]>