245094 Drupal 6 Social Networking

Calling all drupal 6 experts.. what modules do I need to install with Drupal 6.4 to make a solid social networking website? more spefically a site like this [login to view URL] ? I will pay some money to help me to map out an outline of what needs to be done in drupal to make a site like the one listed above.. AND if you can build it when let me know that as well.. but dont just say I can do the job.. give me samples of what drupal stuff you have done and how you would go about building it? So far I know i need Views CCK buddylist2 (not done yet) Organic Groups Calender ??? OR should i just stick with drupal 5 for now?