Well, most of the exhibit area in Warbirds or Vintage have no "ramp" area. All we have is grass (we have a few former roads that can pass for hard surface but mostly they're used as taxiways).

We've never turned away a legal-for-vintage aircraft regardless of size. We've parked Howard 500's and all manners of the Grumman flying boats up to the Albatross. Parked more than a few DC-3's as well. We even convinced the Snowbirds to bring one of their Tudor jets down and park with us.