The cheapest option is to try to find a shop local to do the work. Shipping heavy parts can get expensive.
Loader Parts Source: https://loaderpartssource.com/is a reputable company that sells rebuilt parts and you send your part in for a core charge refund.
Sometimes I find it better to buy a rebuilt part Instead of having my part rebuilt. Since the shop is not in a hurry to rebuild the part, they can take there time and don’t take shortcuts.