Doing this as a deathknight now and its very easy.
Just Deathgrip the elite and cast Icy Touch and Plague strike on him, then cast Strangulate then Pestilence, now he is screwed for a while use Deathchill Howling blast and Blood Boil on the mobs, Rune Tap and Empower Rune Weapon if needed.
Now run out as fast as u can then come back and loot. By the time u have rested and looted ur cooldowns are ready and u can go again. Just rinse and repeat till all groups are dead the reset and go again.
Still no hilt but lots of greens a few blues and 2 purples so far.