I need to replace just the ice cube tray in the ice maker. My own fault, i accidentally pierced it-trying to get excess ice off-also my faulty, over-filled freezer left ajar...

all lessons learned....except how to replace it.
i know i can buy the entire ice maker, is that my only recourse? is just the ice cube tray available? i am more than willing to follow on-line instructions, or is it too complicated if i must buy the entire unit.

thank you!
Lori