Thanks man, much appreciated.
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Wire wheels will wear you out with the amount of force needed to press on it. It will also not take every little bit off. The Steel wool pads on a grinder will make it shine like a mirror the moment you touch down on it.
Once it's mirror shiny, use the mineral spirits and a lint free rag to wipe it clean just before you prime it. Once the primer has set well start coating it with the rubber coat or paint of your choice.