My husband got his from Zerkle Reptile Co. They're in Ohio, done shipping until spring. Very nice people, and gorgeous snakes.
I would not do a T8 for a VBB, not enough vertical space. Ours is in an A20 (3' tall), a T25 (2' tall) is the smallest I'd go. Our VBB's cage has a basking shelf and a PVC jungle gym wrapped in artificial vines, and he's all over it.
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