You don't even NEED to be fully optimized to clear the zones needed for the upgrades anyway. Just swap to a dps spec if they share weapons (and frankly if you don't have an offspec this far into WoW's life that's a you problem not WoW failing to design stuff with I WILL HEAL AND DO NOTHING ELSE people) and don't treat it like a heroic dungeon were you can pull -everything- and survive. Take each mob by itself and use CD's as you want and just don't rush things. Rank 1-6 only need the main boss, Thrall or Alerya to be killed and the next few ranks only require the tier 2 zones to be done and you don't even have to kill Thrall/Ale to get the upgrade tokens. The people full clearing and running masks atm are the ones that are 3000% optimized and speced/azurite traited/essence for clearing visions. I cleared 1-5 on my priest at 402 ilevel, this stuff is not -hard-, just requires to think for more than 5 seconds.