I need a small feeder for a juvenile grow-out coop. I read very bad reviews on the 3# hanging feeders, was considering building one, and then stumbled across a solid bottom rabbit feeder. It's meant for cages but a little modification would let me attach it to the door. It would hold plenty without taking up much space at all. It's galvanized and seems sturdy. Is anyone using something like this in their small coop? Am I overlooking any potential issue?