Regarding Price...

Pistons X 2 - $199.80
Piston Ring X 2 - $103.00
Clips X 4 - $3.60
Cylinder Gasket X 2 - $15.20

For $320.60 (AUD)

So that works out to about $340 NZ. So your getting a better price that me. But I had to pay for shipping from japan as well