I'm am looking to get an animal plastics cage for my female ball python. Should I get the T8 or the T10? The T10 is taller, but cost more, so thoughts?

Also.. how do you light/heat an animal plastics cage? At the moment I have my heat mat under the glass and might lighting outside the tank. Not sure how it works with the animal plastics cages being so enclosed so to speak.

Thank you!