Jim, it is all ready happening with the "first pay, first serve" electrical and water camping sites. If you go through that area each site is clearly marked. No people are needed to volunteer for this activity. You pay for these sites before AirVenture then just drive to your designated site when you arrive. The only task required is that over the next year some number of "first pay, first serve" without electricity and water sites need to be labeled, then begin automated registration and fee collection with ReserveAmerica.com. If there is some other cost that needs to be covered for "first pay, first serve" then just charge more for a reserved spot than is charged for general camping.
Anyway the little secret is out. EAA has rules that you cannot reserve a site unless you are physically present at AirVenture. The rules are flagrantly violated and everyone is winking. Meanwhile the member who follows the rules and arrives sometime during the show must park miles way by Highway 41.