Yeah, if you swapped his enclosure then I wouldn't mess with anything else until he gets accustomed to it for a while. Just wait and see how it goes but as long as he's eating I wouldn't be too worried.
For hides, I like to give several choices with both heated and unheated options. Mine usually hangs out in the warm hide. It's actually a long log that's halfway over the UTH so she can go to the cooler side if she wants without leaving the hide.
I agree. Hope he likes the new set up and I'll wait for any add-ons. The log is a great idea.