Exhaust system Christchurch, New Zealand?

[Tahu1]

Hi All

I have just got a 92 2.8TD mu, it has been sitting by the sea so is a little rusty in spots. The exhaust has nearly rusted through so I need to get a new system? Any suggestions on exhaust systems and more so where to go in Christchurch, New Zealand would be much appreciated thanks. Also any other good shops to purchase from for future upgrades

Tahu