thanks for all the great info! As for the name, if it lets me keep it I think I'll name it Kismet, which I came up with by following your trail of Lucky-Fate-Karma...
I tried to touch him/her and it responded by kind of squirming... after two or three strokes it sounded like it "clicked" at me or something, I don't know... but it definitely seemed agitated so I left it alone after that! I moved the make-shift "hide" so it is covering it, and I put a black notebook on the back side of the glass where the hide is so hopefully it will start to relax. I also used that opportunity to put a small bowl of water in (hopefully not too big).
I still haven't figured out a lighting situation, but I'm going to try and find a small old-school desk lamp on craigslist (they usually burn pretty hot) so I can generate some warmth in there for the big guy.
Hopefully he can use the dark alone time he'll get here overnight to relax and take a drink!
That dirt you see is on the glass, not the bowl of water.