In the meantime go to the 19s forum and look up all cata gear. Should be a sticky. There's a section for some of 10-14 quests there. There should be a shield oy two in that list.
I forgot the counterattack quest chain wasn't a lv14 req. Sorry I can't answer your question then.
All I can say is try looking through wowhead for shields within the 10-14 range and pick whichever works. That or check the armories and hope one of the 14s has a shield. I'll look at the armories later after work.