AU XR8 Gearbox Rebuild

[BlacklistedXR]

hey,
i am about to purchase this kit: http://www.astroperformance.com/pro...products_id/207 from the states and want to find the answers to a few questions before i purchase it.
What gearbox would my AU Falcon 01 XR8 gearbox be under as they list the parts for the kit as 1985-1993 Mustang 5.0 and 1994-1995 Mustang 5.0? Im 90% sure that they classify my gearbox as the t5Z not the T5WC.
Im buying some additional parts with the kit and all up its costing me a little over $2500 landed at my door. Do i have to pay import taxes or anything like that? if so is there anyway to go around it like packaging parts in a number of boxes to avoid going over the import cost limit?
Will this kit fit my gearbox, im buying an alloy mainshaft with it as well and want to make sure everything fits before i put alot of money on it.
Roughly how much would a gearbox shop charge to replace the parts in my gearbox considering that i supply all the parts?
im looking at doing this really soon so if anyone could help me then that would be great.
i have tried posting this thread in the transmission section but had limited responses.