He is a lesser BP about 6 months old and I tried to fill in the tank so it didn't seem overwhelming to him at first and I have a few hides in there for him. So far he seems to like the log more so than the rock hide.
I don't like the UTH too much since my uncle had one that burned his snakes stomach. I will try covering the lid to hold in the humidity, thanks for the tip. I just got him in there and so I am going to give him a few days to adjust and relax from the stress of being re-homed.
Thanks for all the advice, I will post pics when i figure out how with this site.