Thanks for the reply!
I didn't get a chance to get to a hardware store and they're all closed by the time I get out of work, but I did unwrap it and manage to get the temp down (84 degrees) by just moving the tub higher away from the UTH. Not ideal but it'll have to work for now. I ordered a thermostat and a better UTH as soon as I found out I was getting the snake and what exactly I was looking for. It should be here by Wednesday at the latest.

He actually came with a 50 gallon tank but at least for the foreseeable future he'll be staying in the tub.

Thanks for the info on humidity, I did mean percent!

I did have a bit of a primer from SekaiNDobes on here, I'm on another forum with her and she is the one who actually talked me into getting Marx. She walked me through ordering/finding all of the things I needed as well as letting me know about the no feeding/handling for the first week or so.