we have some sticky threads with pix in the husbandry forum:

here's a very helpful guide on how to set-up a tub: http://ball-pythons.net/forums/showt...e-Basics-*DUW*

how to set-up a glass tank: http://ball-pythons.net/forums/showt...-With-Pictures!

and how to set-up a PVC enclosure: http://ball-pythons.net/forums/showt...-With-Pictures!

very helpful threads. enclosure is one part, you've also gotta prove to your grandparents you could take care of the husbandry for a BP. read up, have fun, good luck.