Jeff,
If you reread the original post, they were asking about what could go into that cage. They knew they had a BRB. That isn't why I felt inclined to reply, however.
I have to disagree your comment that all Epicrates are arboreal. A few species are (E. gracilis comes to mind) but most of them, including cenchria, are decidedly terrestrial. I have kept or cared for a variety of taxa of Epicrates (c. cenchria, c. maurus, chrysogaster, striatus) and they rarely, if ever, climbed.
In fact, in older literature, the Epicrates are often called "New World Ground Boas" for that very reason.
Chris
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Chris Harrison