That's not as bad of an Idea as you might think. A friend who used to deal in old parts claimed to have helped the founder of Auto Zone get into the business selling NOS parts. I don't know if it is true. When I sold parts a Car Quest the last computer system we had was connected to almost every Car Quest in the country. I found parts that I never would have expected to locate and that was only about 10 years ago. There are still a lot of old parts on shelves but finding the right shelf is getting tougher.
