I am fury specced
I only have 9500 armour

and we pissed all the way thru the fights as long as you make sure thunderclap and demo shout are up and shield block is on cooldown (standard tanking) its easy altho it helps we have a good healer :) at level 70 this quest chain is the easiet 125gold in under half hour ive ever made

Warrior
Mage
Rogue
Warlock
Priest