We have a list of gunsmiths and rifle builders that we have worked with on our website here (defiancemachine.com/where-to-buy/).
We ship to customers all over the country so really can’t offer specific recommendations. The best advice is to ask around. Find shooters whose equipment you admire. Look for reviews. And if the best gunsmith is not nearby, we suggest you drive the extra miles or ship the parts. You want the best.