Being an old hippie from the days when rolling your own was part of life, I rolled my own fenders 3+ years ago. Here is the link for where I rented the tools
http://www.rollyourfender.com/
The tools was not set up to exactly fit the Porsche lug pattern, but I made it work. They may have one now for the Porsche pattern. Really wasn't that hard to do. Unfortunately I don't have pictures and the car is in the garage as i am droppng the engine due to an intermix problem.