[Perfectlap]

When I was autocrossing the Miata weekly I checked out their forums and there were always a few recommendations based on satisfied customers by location. Mind you these were for spec'd alignments so obviously the tech knew what he was doing to hit the numbers. Aligning a Porsche is no more complicated than any other sports car. More often than not the SCCA and Miata guys were on tight budgets, not like the wine and cheese Porsche crowd who didn't ask for price.
I had a diagnostic done on the Boxster at the biggest Pcar dealer here in NJ and they quoted me $150 for standard specs. I'm guessing the Miata guy was probably no more than $80 or an hour of labor.