Thing is, I might or might not be able to sharpen your blades....depends on the tooth spacing/etc. My sharpener is set up to do WM blades (which can be used on any mill, as long as the length is correct), but not other blades. You can buy different cams for different tooth spacing, and that will do different blades, but since I don't do different blades, I haven't bought the setup for them.
And sharpening is just half the equation...you also have to set the tooth. I bought a $1000 Suffolk Machinery manual tooth setter just to do that part, and speed the process up from the crappy manual tooth setter WM sold with my sharpener.
I did call around locally about sharpening, and got prices for that.....then when I asked about setting, some gave me a price about the same as sharpening, (basically doubling the price) and some places had no clue what I was asking, making me think they have no idea what is required to get a blade functional.