This thread has been an interesting read for me because a few months back I was looking for a shop to do a couple custom bodies for me. I had done all the CAD work and didn't need any modeling done, just add cutter paths and machine. I felt I needed NC for this design because it had a curved top, a fairly complex shape and a very detailed control cavity.
I can tell you I had a heck of a time finding anybody that wanted to take the job on!! The one guy that did return my request couldn't read the data I sent (IGES) and frankly didn't seem interested in working with me to get something he could read.
As a result I ended up going to a local shop that did a lot of NC work for molds. This shop ruined three nice black limba body blanks and could never produce a useable body. Hence, I never got the bodies done and lost a customer for a $2100.00 bass.
So, I for one would be interested in a RELIABLE, HELPFUL, TIMELY and ACCURATE shop that could take my CAD designs and do a nice job of cutting a custom body (and necks too). I certainly would pay more than Warmoth prices for this kind of service on custom stuff that was Warmoth quality.