With those stats for a pally tank it's going to be very rough. I would say around 11.5-12k hp is baseline for heroics, you can make it in pre-kara gear if you do it right. If every item is a blue or better tanking specific item, you should be ok. If you're going into heroics with half a dozen greens, you're going to get destroyed. Gem and enchant for stamina as much as you can. Assuming armory is up to date, it doesn't look like there's any major problems with your spec. Those shoulders need to go, though there's really only one option (shoulder of the bold), and who wants to run SL that much. Try to get the Aldor revered chest or the one from the fire boss in mechanar, and put +150 hp on it. Righteous gear is generally pretty bad. Also the timewarden's legs with all +12 stam gems from keepers of time revered rep will net you close to 500 hp alone, they're by far the best blue tank legs. Shield could use a stam enchant (or go for the Gladiator's shield too, a little resilience is ok). All in all, with just a few items being replaced and adding a couple enchants, I think you could add another 1000 hp without too much trouble.

Also, Sethekk halls is probably not a good heroic to start with. Some of the two-pulls in there (I think the raven lords?) hit insanely hard if you have to tank both. Sp or botanica, or mech are probably some of the easiest IMO.

You can have a look at my pally tank for inspiration, though his gear is a bit beyond entry level at this point.
http://www.wowarmory.com/character-s...er&n=Anozireth