You're planning to "rebuild" an automatic transmission yourself?
No offense meant, but that's not exactly a backyard job, and from your questions, I'd say you lack the experience required - I've torn down manual transmissions, but automatics require a level of experience, cleanliness & equipment beyond that of the average mechanic (and I'm talking fully equipped shops here).
Transparts warehouse can probably supply a kit, I've used them for my manual transmission rebuilds.