Replacing mirrors because of some scumbag! Please help!!

I need to find out where I can buy mirrors in Christchurch? Some drunk cnuts ripped the mirrors off. The sticks they sit on are still attached, it looks like they've been ripped from the ball joints.

I need to get a location (apart from Trevor Price Yamaha) where I can get some replacement mirrors for my Yamaha Scorpio 225 (first bike, less than a week old!)

Thanks

Replacing mirrors because of some scumbag! Please help!!