Unfortunately in this business, (any custom work or parts for fine firearms) the industry is in fact quite small. Most shops were started by one man with a vision and as things grew so did the employees, phone calls and e-mails. It is a fact of life that in this industry margins are slight and money can't be wasted. Although some may disagree with that, but they are the same guys who look for the cheapest "work shed smith" to chamber their barrels. This isn't the insurance industry or health care where there is a multitude of people to answer most general questions, 24 hours a day. This industry and the process of bringing a custom rifle to fruition is a complex matter of suppliers and craftsman who operate on very certain and different time-lines.
Most everyone with-in the industry, has a working relationship with everyone else in the industry, we understand delays and mistakes, and production supply issues even at the level of raw material deliveries. We work together and resolve our issues out of the public eye in 99.9% of the cases.
To the OP, in most cases it is best to bring your vision, to a career gunsmith, and let him do the footwork as far as reamer specs, component compatibility issues, and choices. They have the working relationship with the industry and understand how each supplier operates and can usually get results faster and with less headaches for everyone. If your gunsmith recommended a reamer maker it would have been best to heed his advice, and worked with your smith on reamer specs and allowed him to order it for you. This would have saved you a headache, and Dave Kiff the incessant harassment on an open forum, for no other reason then an e-mail or phone call not being returned. My only suggestion for you is to be patient understand we are all human and all trying to serve our customers the best we can, one off projects take alot of time and coordination to get them right the first time, if your this frustrated this early in the process your in for a long rough road.
I have worked as a customer of Dave's' for about 5 years, has things been 100% perfect? No. Do I really expect them to be? NO. Have I waited longer for some things at different times of the year? You bet.
But anytime I had a problem or issue , Dave has addressed the issue and stood behind his product 100%. That is where he shines unrelenting customer service.
In all honesty he supplies excellent products at fair prices in reasonable amounts of time. He is truly an asset to this industry, supplying a wide variety of aftermarket parts that would be difficult to source with-out him. His respectful response to your post is exactly what I would expect from him.