Matt,
One of the things I tell my customers is that they don't want to own a cabinet shop, they just want to rent one. Implicit in that is the fact that we have other customers and the systems we use need to work for a broader base of customer.
Some of this just reflects the demographics of the crew we can hire these days. It takes about ten years of woodworking before you can bring much worthwhile experience or reliable intuition to the table. The problem is that there are no candidates with ten years of experience. There may well be some people who started this career in the year 2006 but for five years these people were staying home watching Oprah.
To do what you are asking for the door shop needs someone like you, someone who is capable of reading the grain in a board and recognizing which side to orient up and which edge to orient in to the cutter. Someone with your experience wouldn't be willing to work for door making wages and the majority of door company customers wouldn't be willing to pay what they would need to for that level of experience.
You can't go to a McDonald's restaurant and ask for a Pastrami sandwich. It's not going to happen. They have a way better kitchen than your local deli but they would go broke selling $50 Pastrami sandwiches.
I recognize your problem. We build all of our own doors because we simply can't buy the quality we need. If I could pay through the nose and make it happen I would. There's no cooler employee than the UPS man.