1st Flight to Air-Venture

After 30 plus years of flying its time to go to OSH for the big show!
Its taken 15 of those years to convence my wife that she just might
have a great time camping for that whole week with the airplane and a
tent. We plan to remove the rear seats before we depart for an extra
sleeping area in case it rains and all is wet. Other then a legal
paper saying we will be home in 8 days what all should we bring? Do
they sell 100LL there too? Any showers? Just too many questions to be
asked. Cessna 172H Owner and I want to keep it that way!

Thanks
A & K