Well Gr8santini on the forum does it but he doesn't have an FFL so he can do anything except the lower (receiver) unless you are in the state. I think you should ask him how much it costs. I do know that it above $100 but below $150 and that includes shipping back to you.
If you're interested, PM me with what you want done. I've done quite a few projects for forum members here and I think that you'll get nothing but good feed back about me and my work from them. I just finished up two XCR Dura Coat projects today.