Playing devil's advocate here, but have you considered doing it yourself? Rust bluing gives a beautiful classic finish (and some claim that it's more durable than hot bluing), and can be done with minimal equipment and without the use of dangerous caustic chemicals. It's not rocket science and all it really requires is sweat equity.
You're not wrong. I've done smaller projects with cold blue in the garage. But this time I'm going to let a pro polish, sharpen, and hot blue them. I'll invest my sweat in the stocks.