Something else I was thinking about today to help raise funds; offer a membership program more like a golf course. So you pay $300 - $500 yearly then get all your club racing and practice for free. Or take what one would expect to spend racing twice a week, add it up for a year and take off like 50%. If there is a bigger (more expensive entry fee) event, then just deduct the normal club rate for members.

Multi classes would be a tricky, maybe offer multi class memberships, or do add-ons on race days when you race a second class, etc.

Could be a quick way to raise $5k - $10k depending on how the numbers work out, or break it down into a monthly fee to have some recurring revenue on the books which is always nice if you need a loan or other investors.