We have two Zilla 40 gallon breeder glass tanks with locking tops for Basil, our Ball (about 4 feet), and Aaliyah, our Beardie (including a 20 gallon for our Corn), and I must say, I would rather have stacking AP cages or vision cages. For a Ball, a non-see through tub in a AP rack would be perfect, as it make them feel secure, and if you're going for display tanks, the vision tanks are enclosed on 3 sides, as well as stacking beautifully. I think they're beautiful for displaying a collection. Also, a table/stand is unnecessary, and may even be unattractive. I hate having to have tables for my 40 gallon tanks (we use the cheap black fold out tables due to cost and space).

We're planning on enclosing Basil's tank on 3 sides with paper to help him feel more secure.

You cannot go wrong with either choice. If you're expanding, go with the rack system!