Cleric Epic question
 

So... I got lucky to get zord's heart before doing the other steps of the quest. I got excited and turned it into Omat at the same time as the shell from Lake Rathe.

After now reading the whole questline, I realized I screwed up XD

I've seen several final turn ins, and neither Jhassad Oceanson nor the Avatar of Water despawn upon turn-in, but I can't find anywhere whether or not they'll accept a 2nd round of items.

In other words, did I completely waste a heart and just need another one? Or can I piggy back on another cleric's turn-in and salvage my dumbness?