[dfw]

For setup I would suggest the following :
No parking on the field, then put the pilot box at the field entry. This gives you a better separation between pilot box and race track, safer for visitors as they won't need to walk passed the racetrack and additional (and dryer) grounds over what was now used for parking and tents. Only downside is that all parking has to happen on the entry road or tucks road, but that was the case for a lot of participants anyways.