Thanks for the comments!

Decoration is next on my list, some "greenery" to hide in since he is a wee bit on the small side for a tank that large. I bumped up the "hot" spot to 89'F, and everything else looks stable so I think I'll move him in tonight and see how he does. He'd better appreciate it!

I was thinking about getting a plexi-glass lid for it, yess....I'd put it under the screen cover on 3/4 of the tank since it seems like I only need one lamp to maintain the ambient temps. Right now I have the top partially sealed with foil tape. I like kitedemon's solution, but I wanted to leave in the lamps since in his previous tank he always seemed to like lying underneath them, even though they're not supposed to "bask", and I wanted to be able to control the tank's temp a little better come winter. Right now I have it secured with 8 cage clips, Mr. Escape Artist loves trying to sneak out at night.

I have a smaller bowl on the hot side stuffed with sphagnum moss, and I think I'll put one on the other side too, since he doesn't like to soak, but likes to curl up in the moss.

I put the cage in a corner against two walls and a cabinet on the other side, thinking that would provide him a more "secure" location, so as not to have to cover the sides....guess I'll find out. How well can they see/sense that they're in the open?