The DEMO version only includes 4 pages:
http://groundzeroprecision.com
http://groundzeroprecision.com/back-in-stock.html
http://groundzeroprecision.com/current-specials.html
http://groundzeroprecision.com/current-specials/flash-sales.html
It is possible to download these free files and install them on your server, so you can test how the site works.
Visit https://www.waybackmachinedownloader.com/en/buy-wayback-machine-downloader-recover/ to buy a fully functioning site.
Go back to the index page