I'd contact the tracks and see what they will offer you.
Not every division has a title sponsor, so I'm sure a track in that position would take you on for anything on the condition that if another sponsor comes along willing the pay the full price you get bumped. Not filling your sponsors is bad for the track for getting new sponsors, so having someone's name on works in your best interest.
Some tracks have their cleanup crews sponsored by someone, that may be a cheaper option for you. You could also sponsor a team, many top running teams have very little sponsorship and or are running their own personal business names.
I wouldn't be asking here there are no active track owners/promoters on here just call them. I'd guarantee you each and every track is going to find a way to accommodate you if you are willing to put up money.
Racers like to whine and bitch about purse. But the truth is they are all to stupid (I'll include myself here) to realize they are spending 10 times what they could ever hope to win. Realistically when you are blowing $1,000 or more per night (and that is mini stock these days) $15 or $40 bucks is like a penny off your Big Mac meal. Someone who is spending 20K on a racing program for a year isn't a charity case that needs 15 bucks from you. Supporting the track on the other hand means the doors stay open so we all have a place to race.
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