And a 1200hp radial 400gal machine would be equally as hopeless spraying broadacre cotton.
The aircraft that can do it all has never and will never be invented.
I've only ever flown Pawnees, Braves (the Tiara was a standout) and the AT range. If I had to pick one out of those it'd be the 802. It's the quietest, fastest, best endurance/range, best load carrying and will turn as fast as the others when the load gets down. I'd rather turn a little slower for the first half of the load than be ferrying back for that second 400 anyhow. AND you can legally land with the full 16,000 lbs if you need to.