hey there.. i am also in the process of twinking a 29 warrior here are my thoughts:
Shoulders- you can get something shoulder of the soldier from AH, they are 5 strength, 5 stam, 5 crit rating mail shoulders
Gloves- I Would get tiger's hunter's gloves and slap either 15 hit rating on them (if you don't get the hit rating neck) or 15 strength with hit rating neck
neck-
there is an 11 hit rating neck which is good, can find it on AH
There is also pendate agate of the shield, a consumable neck gives 4/4 stam/strength and a buff of 10 extra stam for every1 in ur party (can be used 10 times)
For pvp i recommend cappnig your hit (5%) so you don't miss crucial shield bashes, intimmidating shouts, disarm, etc. especially as you will be landing disarms after a warstomp, you will have 0% to miss if you hit cap.
I would also consider 5 hit rating enchant to boot. good luck twinking!