Your site looks good:
http://kcncproduction.com/index.html
What are your routers' Z capacity (machineable height)? I see from your site that you have three machines.
We have a five-axis machine where I work with a 5' x 20' bed (Routech) and are looking to get a five-axis Onsrud with 4' of Z capacity. My firm is involved with non-instrument-related woodworking; we haven't done any instrument parts, although we do a lot of compound curvature work.
Good for you for starting this up. From my perspective as an architectural woodworker and amateur player, I say, absolutely; get the bulk of the wood out of the way so that the skilled luthiers can do what they do best, the detailed work. Save the hands for the work that only they can do.
Looks as if you do some architectural woodwork, too. Nice to see the diversification.
Best of luck!