First off, thank you for your help, I truly appreciate all of the advice

When I took him home today, I covered the top and two sides with a thick towel
This raised the ambient side to 77 and the hot hide to 86.
There already is a 6" or so water bowl in there, but I could go deeper.
As soon as I get the IR temp gun in Im going to see how hot the glass is. At this point, it is warm to the touch but not certainly hot. How hot is too hot?

As of right now, he is happily under the warm hide hanging out

Thanks again