Charlie,
While not exactly "local" in the strict definition, Herrington's, a NH based mail order company of all sorts of esoterica, has offered it. They're in Londonderry; (800) 903-2878 and
www.HerringtonCatalog.com
The only other source I'm aware of is my ole stand-by, Autopia, through the retail affiliate, Classic Motoring Accessories.
Of course, I have plenty left in the containers in my garage!
...missed you at AX today. It wasn't a great day for me -- too many DNFs (at one tricky spot), but Janet was quite psyched -- NO DNFs and consistently improved times. Overall, nice fast course.
Regards,
John