I'd say keep up the practice on Hillsbrad.... a few runs and you'll have it licked... I wiped a few times at 67 with a 70 warrior tank, but after about 4 runs I had it sorted and it became a breeze. Clean no wipe clears in around 45 mins, with decent loot and nice rep...

Keep up the practice, learn the patrols and spawn points and it becomes easy.