Canterbury Park might do, but aren't the horses running by then? One thing about a fairground layout, is you have the buildings to house the more valuable/rare cars out of harm's way. That is one thing I think they have got to love since moving out of Raceway Park. Biggest complaints I heard were,the dirt road needs to be paved (yeah, sure) and there is a lot of walking involved to get from the show field, to the swap meet, as there is an arena that is fenced off that's in the way. I got around to most of the grounds, just not the swap meet.
You just want to be able to bring the whole fleet, don't you?