Also i would spec all of your members to DPS for questing. Then go back to tank,healer setup when you want to run instances. I know dual spec is alot but its worth it on main toon atleast.

It was taking me about 5-8 hours per level above 72. Gets old but you get alot of gold per toon just grinding quests.... which is nice

And atleast do the 1 random wrath dungeon a day so you get your 2 triumphs, I had 32 on my toons by the time i hit 80 which gave me my shoulders right away.