I am in desperate need of a rear hub - my new Heckler frame is coming July 3rd and I currently have a v-brake rear wheel. I want to go XT M756 and mavic F519. I have been watching e-bay for a while and they haven't had any great deal on rear hubs in a while. So far, the cheapest I found was Cambria for $50 and Universal Cycles for $52.67 - a price drop instead of price match to Cambria. Is there any place I can get one for cheaper? Mind that I am only looking for a rear hub.