You might check out the P-W loaders on eBay.
Two 12-ga P-W 800b's are listed for around $400. They appear to be in working condition.
P-W's are built strongly. However, finding a retailer that stocks parts is difficult. (As compared to MEC's, parts for which are pretty much available at retail.)
Shot goes out the door for around $42-44/25# bag, including taxes. And depending whether it's Lawrence, West Coast, whatever. Reclaimed shot is cheaper. Resale shot (like yours) will have to be discounted.
Without seeing the stuff, price is hard to tell. Given that you say it's maybe a bit beat up, you might try, say.....$250-300 OBO and list it on the Forum. See what happens.
Or......Fer Cryin' Out Loud, buy the P-W reloader and a Browning 725, take up trapshooting.