-35- W Procter, Wheelwright & Coachbuilder Location 35 on your map of Sovereign Hill is the premises of William Proctor, Coachbuilder, and the Wheelwrights plant. On display here are some of Sovereign Hills significant collection of historical vehicles. Sovereign Hill's coachbuilders and wheelwrights build and repair all of our extensive range of horse-drawn vehicles. We also accept commissions from all over Australia.