Check with Paul Craddock at Craddock Precision (Paul used to be with John and company at WOA full-time but he's running his own place now too). Here's a link to his site (not the greatest website, but Paul's work is quite excellent):
Wix.com craddockprecision created by pa4444 based on pro-bistro
Paul doesn't have a ton of information re: pricing, etc. on his site yet as he really prefers to communicate direct with customers about what they need/want and provide individualized quotes. You can e-mail him initially with what you want, but I have never had issue getting him on the horn to chat if you'd prefer to got that route first. Paul has done several different barrels for me and for others I know, including recently an 18" match LR-308 pattern barrel that's sitting in queue waiting to be assembled now. Beautiful work and incredibly fast turnaround times. For complete barrels, using my bolts as provided for proper setup of the barrel, I have never waited more than 7wks from shipping my end of things to having my barrels in hand.