I used these from Rock Auto. No issues with dust and reasonable prices. You can get front AND rear Centrics for less than Akebono fronts.

https://www.rockauto.com/en/moreinfo...425833&jsn=404

https://www.rockauto.com/en/moreinfo...425833&jsn=391

If you decide to replace the rotors I highly recommend the Brembo ones they make for the XK8. They cost more but the finish coating is worth it for resisting rust.