Power Word: Shield Mouseover Value WeakAura

Is it possible to create a weakaura that shows the remaining absorb value of Power Word: Shield on your mouseover target? I'd like it to show as a number by my mouse when I mouse over a player in my unit frames or at least show the number in one location. I found the weakaura that does this, but only with the player's name, and I'm not sure how I could modify that or if it's possible at all.

EDIT: For Cata classic btw