RS Motorsport :: Classic Speed Restored

This is not really related to a classic ford but it could later on, where is the best (cheapest) place to buy gearbox parts ? I have a 1997 ford courier that i've stripped down the gearbox and has a broken 3rd/4th clutch hub, even on google there is very little info found.

any leads on a supplier local or overseas that is cheap would be very helpful

thanks