I agree with Mark. No matter how cheap it is it's useless with rusty parts. Plus it's not even a rebuild kit, just a basic seal kit. It doesn't have seals, clutch discs and steels, bushings, bands, a filter, or a rear sprague roller and spring kit.
X3. When you start with junk parts you will end up with junk. Automatic transmissions are not very forgiving and too much work to pull so buy fresh stock good quality parts.