Upgrades you can get on your own.
Helm -245 badge item
Neck -Lich king heroic HoR
Back - Falric Heroic HoR
Weapon - Rimefangs claw H-PoS
Shield - Heroic HoR
Trinkets- Black Heart from normal ToC and the Essence of Gossimar from the spider in Azjol-Nerub. +237sta is far better than 3570 armor for 20 seconds and if you like block, get the libram that gives you like 400 block everytime you use sacred shileld.

I would also try and do some rep runs in ICC with your group and get a fantastic ring upgrade, also if you get Honored you can get the crafted boots and legs pattern but primordial saronite is about 2000-2300 a pop on my server so getting all of it can be spendy.