Damn! I broke Tab A a long time ago by hammering on it with an old Llama .45....
anyway, the main problem I have with "mail away" gunsmiths is that they will (to expound on your example) accept that .22 into their shop before they have the reamers, why not just take a deposit and let the customer enjoy his last days with the .22? Sounds like you let people know where they stand up front, which the best anyone can ask for.
If the weather keeps up I may jump on the Duck and head up to say "hello." If you get a chance email me some directions to your shop.