I just hit exalted with the Shattered Sun Offensive. Fortunately turning in the nether residue gives 250 and not 150 like I expected.
Not one to refuse trading gold for epics, I took the portal to Quel'Danas and ran to the rep vendor. First they ruined all my hard work of emptying my bags by giving me a box filled with scryer rep items, potions, water, and bread. Finally I started checking gear. The healing neck was a big upgrade and less than 19g, no-brainer. There's not really a pure tanking neck; though there is an hit, expertise, stam neck. It's a lot like the badge neck I got, which is giving me some buyer's remorse. http://www.wowhead.com/?item=33296
I'm over the hit cap, so I can afford to lose some with the SSO rep neck. It's a bit less expertise and the Aldor proc isn't very useful for DPS. But even though it's worse, at least it's much cheaper. If I'd planned ahead I'd have saved my badges for the badge axe and worn the inferior neck until I could get more badges or maybe gotten a better neck from raiding.
In unrelated news, it's very hard to find a MC PUG. People seem to only care about gear and badges. I suppose I'll have to wait for the next expansion when I can solo MC if I want to get the other Thunderfury binding and the Force Reactive Disk schematic.