Blue oil skin rain coat - made in NZ (Saint George's CO2)

I have a blue oil skin rain coat (size 12-14) available. It is need of a new zip as the one on it is starting to die (the coat is around 40 years old but in brilliant condition - apart from the zip). To replace the zip would be an easy job. If you have any questions, please do not hesitate to ask. Comes from a pet and smoke free home.