I would love to attend but you guys planned it during one of the largest carshows and swap meets (4200 swap spaces - took me 11 hrs of walking to see it all in one day, next day was a solid 8 hrs of looking at show cars) the midwest has to offer. Alot of people from around the world attend this one.
http://iolaoldcarshow.com/ Maybe next year! Another big one that happens every year is Hershy, PA in the fall (usually october) - another huge swapmeet - probably largest in the country.