Hey mate. The suggestions I would make :
Cloak - Put 225 Armor on it
Chest - Instead of that 8 dodge and stam chuck on a stats all which will cover all color gem slots you'd need for your meta slot.
Bracers - Get defensive ones and put a +40 Stam enchant on it. If it has a slot chuck a Stam in it.
Gloves - Chuck the 2% increased threat onto it.
Okay.. looked through all your gear. Chuck all +30 stams into your slots, 1 gem slot will need to be a stats gem for all color spots. 1 Also needs to be equivalent "Stam" gem plus another color so that your meta slot works.
Stam enchants as well. Get rid of the attack power. Stam stam stam for tanking. As much as you could possibly get.
Also your talent builds a bit off. Try http://www.wowarmory.com/talent-calc...00000000000000