Ah, I see you are in the middle of nowhere. In that case, order anything that isn't european/extremely rally related from MOPAC in Edmonton. They basically give JEGS/Summit Racing pricing on everything. Having said that, you are co-driving, so you don't want shoes, you want a nice, ankle-high boot of some sort preferably, but one that is also lightweight/lightly constructed.
Element (skate shoe company) makes a skateshoe boot with aggressive soles but its more for winter. If I ever got back into co-driving, I'd wear them in winter events anyways (currently rocking them daily). DC makes one called the "ranger" I think, also useful.