Haven't you read our showing threads???? Shame on you. If she's show quality get her out there
First kittens have to be 4 months old (up to 8 months old - then they would be shown in the alter or premier class).
Get her registered first with CFA and then if you want to eventually show in another association (ACFA or TICA) you already have CFA registration done.
Before you get her, attend a local cat show and sit and watch the judging in the rings. Then you will have an idea of what goes on and how to condition her for showing (imitate what the judges do).
You don't have to have your own cage as the clubs still provide the ones in the benching area if needed. But you would have to get towels or material to cover the 3 sides of the cage, top and bottom. As you walk around you will see what people bring, litter pan, food, water, grooming tools, etc. Talk to some of the exhibitors and ask questions. On the CFA website there are good articles explaining what goes on and how to show your cat.
Here's the links. If you have other questions, just ask. I'll also give you the links to look up shows in the area. Whatever show you want to go to, contact the entry clerk for information and tell them you are brand new at showing so they can send you everything you need to entry the show.http://www.cfa.org/shows.html