I am flying my thatcher cx4 to oshkosh this year. I haven't seen one of these at oshkosh in the last three years I've been there. I am wanting to be parked on the flight line instead of in the back with all of the rv's. How does the parking work, and how do they determine who parks on the flight line and who parks in the back with all of the rv,s? Also, have things changed due to the demolition of some buildings? Thanks so much!