The Drive Channel got an inside look at the Porsche Classic Shop in Germany. They work exclusively on Porsche road cars. What makes it interesting is that the Classic Shop stocks parts for the vintage cars made from the same supply chain that made the original factory parts. They also employ and consult with many of the workers that built the cars on the assembly line when they were being made new. You can order Classic Shop parts for your car from any Porsche dealership or you can send your car to them for an official restoration to increase its value.
Source: DRIVE on YouTube