No, leave the towel...I don't need a pic of the tank and I think you'll get this figured out soon enough. King snakes are cute, & usually pretty easy snakes to keep, once
you get their needs figured out.

Glad you're waiting for help with the tank...40 gal. tanks ARE hard to move & not something you want to drop or get hurt trying to move by yourself...I have quite a few
of them, lol. And much bigger tanks too. I'm a glass tank fan all the way.

BTW, the Bean Farm has a larger size of 'herpatat' and they also have other good basic black plastic hides too. Lots of good supplies, they're one of several reliable
online companies, and Reptile Basics is another one, but I don't recall them ever having any hides like the 'herpatat'.