In my experience, it rarely pays to purchase a rebuilt or remanufactured axle assembly. New axles can be purchased for as low as $50 depending upon application and rebuilt or reman axles are, in most cases, within 10-15% of a new axle price. In my many years of German car work, one cv joint alone (at the dealership level) cost within 15% of a new axle assembly, plus the additional labor to disassemble the cv joint/stub end and put the new part on and lubricate the joint/end.