313605 Surfthechannel clone / similar

I'm looking to build a [login to view URL] clone for other usage. The db should also have a practical web interface to manage links (back office style). No public addition to the DB is required. A comment interface would be nice. Links need to be added by a very reduced number of people who should have a restricted access. All software used should be opensource. This is a private project and the money for this is limited, please let me know. Thanks