Randy- I'd talk to the shop foreman and tell him you do it for a hobby. You might find them doing it as a one off for next to nothing (maybe free). This would be a standard tool and die shop that has some (or a) decent surface grinders.
If I was doing this professionally I might setup an account (or at least save your receipts), you could write this service off on your taxes. Not to mention all sorts of other things they could do for you to save your shop time and money (mill parts, sharpen tools etc.).

-Brian