Sorry for contributing to derail!
More on topic: about the screen top, if it's woven tightly like window screen, that's the dangerous kind. There is a type of screen lid that's flat with diamond-shaped openings, and those are perfectly safe. I can't tell from the pics but it looks like you have the safe one? Clips for the lid may also be a good idea, tarantulas are shockingly strong (and stubborn) and if she gets it into her head to lift the lid she's going to keep at it if there's any give.