Sorry, but vintage racers won't show up. I guess I shouldn't be so generalizing about it, because I probably would and a handful of others would. So I guess I should say "I'll bet less than 20 vintage racers would show up."
Keep in mind that at the AMA or AHRMA vintage races they layout a course going around most of the jumps. If you say they have to race the same track you're done. A good example of this is the High Point Vet/Vintage National. This has been running for almost 30 years! For 2013 they had a total of 11 "vintage" racers show up. And that's stretching it because they started "Vintage" at 1995 or older.
I've raced the High Point Vet National on old bikes about 5 times, and not counting Babets I think I've only see one or two other racers there that I see at AMA or AHRMA races over the entire span I've raced the event. I'll admit, sometimes it's a handful trying to race an old bike on the full High Point course prepped for modern bikes.
If you really want to try it out, focus on the Vet classes but you could have about 4 classes for old bikes to kick the tires:
Non-Current (1996 or older)
Pre-Modern (1990 or older)
Post Vintage (1984 or older, drum brakes)
Dual Shockers (drum brakes)
This whole conversation sounds vaguely familiar.....
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