Kronk is very cute!! I saw that he's upside down in the one pic, just make sure the heat lamp is up off his cage or else if he sits under it too long, he will get thermal burns.
Gaping is their way of regulating body temp. If you notice excess saliva in her mouth or hear popping noises and she seems lethargic and just not herself, those are usually signs of a URI.
I had my cham outside a few weeks ago and had him in his tree. I turned by back for a few seconds and he was on the ground running. They are very fast when they see an escape. I hope you find him :)
I would give him time to settle in. Moves are very stressful on chams and it can take them weeks to feel comfortable again. Just keep his cage nice and misted and he will drink, even if you don't see him doing it.
The cats are a good way to keep the cham in the tree!! My biggest problem is my cham climbing down and trying to escape. I just need to go buy some guard cats ;)
Just give him time to settle in. Every cham is different. Try putting him in a room with no traffic so he can get used to his new cage. His whole world changed before his eyes. I would gradually go up to his cage a little more everyday and let him watch you put his food in the cage so he...
Hand feeding worked really well for our panther...He was VERY hesitant and it took a good 2 months to get him to be completely comfortable with us handling him. We associate our hand with food or something that he enjoys (going outside, on the free range, or in the shower) anytime we handle him...
I'm pretty sure he will be ok...although it will be kinda stressful on him, they take chams to reptile shows, which requires moving them. I would try wearing a glove to get him out so if he does try to bite, it wont hurt you. :)
I don't have any substrate in my cage. Just the plastic bottom that the cage came with, it's so much easier to clean that having the reptile carpet or anything else.