Thanks for your thorough response! I was unaware that they also needed UVB, not sure how I missed that in the care sheets I read, but that does require a bulb. I will keep your recommendation about a 2' tall cage in mind... I might also look into getting a cage made with a hole / mesh for a light to sit on top and just have the BTS as the top cage in my stack.

I will check the site you mentioned and do more research there. I will also look into LLL. My main reasoning behind avoiding a big seller like them is to hopefully get an animal without parasites or mites.. But if I have to buy from a store / reseller, then I will definitely consider LLL if you have had good experiences with them.
Thank you again for your help and time!