You can't edit after ten minutes of posting. Most people on here will probably recommend a tub or an animal plastics T8 cage. If you want a display I'd recommend the T8. Here's a link to the site http://www.apcages.com/home/terrestrial/T8/T8.htm
If you don't have quite enough space you could order the T3, it's a bit smaller but it should work if she's out enough or if she's pretty lazy.
I don't keep my ball in a tub so I can't really help you there, but most people on the site can.
Can we see some pics of her? I'd love to see some comparison pics too. It's been a while since I've seen a ball that big.