PVP bracers are 12k honor, you can pound that out in one AV weekend and they'll last you a good while*. Definitely get Verdant/Wastewalker Gloves though, and you could stand a better belt too; Manimal's Cinch is a great quested one, and there's a few green and blue "of the Monkey" variety that are better.
I personally socketed the clefthoof gear according to matching colors since Dodge Rating is useful. I also put 12 stam into the blue sockets since you're likely to have the pieces a while unless you plan on getting S2/3 chest. (T4 is better in all cases, but you have to get lucky for the right tokens to drop, etc, and you'd have to commit the gems/enchants on the T4 to tanking, making the pieces potentially subpar for kitty.)
Trinkets are meh but aren't really a breaking point of any tank, usually; I'd still look into replacements, many of which are purchasable (whether via faction vendors or AH/trade). Charm of Alacrity is an ok ******** button but doesn't give you anything passive.
All that said, your raw stats seem to agree with the consensus of what you need to hop into Kara; I'm just of the opinion that you can never be too prepared, especially for a raid, so just meeting the minimum isn't always a good idea. :x
* If you really hate PVP, Umberhowl's Collar is a questable alternative, and still lightyears better than what you have; it's along the same line for Verdant Gloves and Manimal's Cinch I believe, so that makes it even easier to get.