Thanks for the good thoughts, everyone. I think it helped. I just made a thread for him in the Rainbow Bridge section with a long post and lots of pictures. I can't believe he's gone.
I came back to post updates about him here in the Infirmary a couple of times. He was doing really well. Each time, I would type something out, then didn't post it because I didn't want to be asked more about treating him with Ponazuril because there was no way that was going to happen since the vet was adamant about not prescribing it.
I'm trying to decide what to do now. I want to have a necropsy done on him so we can find out what damage the EC had done to him, but his vet is currently in Louisiana cleaning up oily birds and won't be back soon. The only other option is another vet in town who isn't the most experienced and I don't know that she'd know what to look for. I don't want him being cut up for no reason. I do know I want him to be cremated, like Cinnabun and Tallulah were. I'm going to cut off a swatch of his fur and some whiskers too, but that's so hard to do.
I can't believe he isn't just going to get up. I have him still lying on a blanket next to me and his fur is still so soft.