Note: I have Acerbis hand guards on my KTM 500 and have been happy with them. Also have a different style Acerbis on the KDX - also good. I am also not biased towards the brand.
I was a Fox Shock fan until my Yamaha Wolverine had problems - springs bending and rubbing on shock - would not recommend them, but also letting Fox respond before I publicly trash them.
Would also like to hear about your experience with the eBay deal after some time with them on the trail.