They might be reusable to the right person. I would look at them closely for wear and damage and get the dial caliper out and measure the lobes for wear and to compare. Measure both edges because there is a slight taper ground into the lobe. Knowing it's good, it might be worth $50-75. Probably cost almost 50 to ship it. If the lobes are worn, it can be used as a core for a regrind but there again, the length and weight may be an issue for shipping. No reason to spend $35-40+ to UPS it across the country if it has no real value. Regrinders may pick up cores at swap meets like other parts vendors do. I know Brewer collects transmissions and Glen Ray collects radiators at swap meet.