Group 1 - Dps warrior(me!), feral druid, enh shammy, prot pally, bm hunter.
Group 2 - SP, 2 warlocks, resto shamy, CoH priest.

I manage to get a group with the above setup and had 11mins remaining after killing the 4th boss.

If u really want to get a bear mount ez mode - just get a pro Prot pally. Speedy trash clears is where it counts - not to mention huge advantage on 3rd boss.