My vote would go to 4083Z, a 66 A model. It began life spraying 6 mos before it was completely balled up and stored. Came out of storage and towed gliders until it was flipped, redone, and groundlooped. I bought the thing after a layoff of flying for 10 years, and it took all my hard landings with ease while I re-learned the low level skills my WWII ag instructors had taught in Ga. for motion film work. It had been unwashed for so long, it was brown instead of white, and its lone red stripe had faded into the brown. It was the loudest SC I ever flew by far, and the floorboards had long ago been stripped of all paint. Whenever I would invite someone to go flying they'd take a look at it and refuse, so I traded it to Richmond for a 79 he'd just got in (unmodified), and somebody had him rebuild it, but wrecked the thing again (oops). Last I knew it had been traded to a company in Oregon and was working again, towing banners or some such thing.