Of what I remember, their setup was at least:
- 120 monk
- 120 mage
- 117 boosted char (can't remember class)
- A healer (you need to sustain some dmg)
- Coordinates: /way Vol'dun 47.63, 75.71 (picture of the site)
The monk had his ox statue up in the middle of the room, and mobs just kept respawning and gathering at the center where they AOE'd them down.