Drupal Master site

I want to build my own generic Drupal Install. A Drupal Template, if you like, to contain a set list of stable installed modules. The purpose is so I can build multiple sites starting from the same base point, to mimic an existing 'master' install - see attached text file for list of current modules. I can't be sure if this is a complete list, but am happy to take advice on this. Front end Modules (If not already listed in the text document), Slideshow, Image gallery with lightbox, Member permissions(to view hidden content, to add content, edit content etc), Latest News, Social Media Sharing.