I call BS on that "no experienced VW mechanics". There are plenty of aircooled guys left the world over. The numbers are dwindling but they are out there.
Try thesamba.com
I own a Vintage Spyder, it is aircooled. I work on a bunch of guys cars near me in the US. I build engines and transmissions and rebuild and tune carbs as well as fabrication.
P.S.: Al is buying all the beer this year LOL!