I think because of how big and heavy balls are when they go cruising, making a display enclosure with that in mind is key. So something like this:
Hides
A nice tunnel
A good, sturdy climbing branch
Water dish (this one is neat, it sits down under the substrate!) and then for your bit of green getcha a couple of these
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And put reptile safe live plants in them! You'll want to get mature plants that can stand up to vigorous noofing and being slithered on, and you may want to keep back ups to cycle out so one can have a recovery break, but they'll be less likely to be pushed over than the flimsy plastic things.