Geraldton doesn't have any sailboarding or kitesurfing shops any more. Previously it had the G-Spot and Geraldton Surf and Sail, but both have closed their shop fronts and now only provide an on line service.
The G-Spot Extreme web page is here. It details the on-line gear.
The Geraldton Surf and Sail web page is here. It details the on-line gear.