[joshu]

For stuff like that, best to go to the vintage and historic races and events. I explicitly looked for cars that were eligible for the Monterey historics (I have two currently.) It helps to find people who specialize in the vehicle you have, as well.

Trackdays skew towards much more modern cars. Although I met the shop that takes care of my stuff at one (they did Spec Miata rental, and now I race that too)