The is a cheaper option; the Ohlins S36DR1. Admitted that it does not have all the bells and whistles that the S36HR and TTX, but it is still a far superior shock than the stock shock. Made by Ohlins Asia, the shock is for the Asian Market only, however, there are plenty of shops in Thailand which would be willing to ship it anywhere in the world. Cost in Thailand is around US$ 350/- making it exceptional value.
http://www.ohlinsasia.com/product/pr...AWASAKI&show=0