He wrote the book, and comes right out and says that repairing real antiques can take quite a while to complete. But being able to utilize his wealth of experience and attention to detail could be worth it. Might want to check with him first to see how he's doing and what his backlog is.
http://www.oldwestgunsmith.com/
Look around his website to learn the details about how he operates:
http://www.oldwestgunsmith.com/gunsmith/prices.htm
http://www.oldwestgunsmith.com/gunsmith/prices.htm