Yes, I would say poop is a good sign. You never realize how exciting poop can be until you go through something like this. I am going to continue housing him in the small tank until he hopefully recovers. I think taking out the hide for an hour or so is helping with the hunting. With the hide in he pretty much just hides. But when you remove it he shows a lot of interest in eating, or at least trying to eat.

I would definitely continue what you are doing and try to feel encouraged by the signs you've been getting since they seem positive.

If anyone has any other suggestions, I would appreciate them.