Ag flying question
 

I could use a some advice from some Ag pilots out there or anyone who has flown one of these planes. I'm getting in with a local spray business this spring but I need to buy my own piston plane because the operator im getting in with runs all turbines. I have pretty much everything else figured out but could use some input/advice on which airplane is best. The planes I am looking at are the air tractor 301,401, piston dromander, Ag cat, Pawnee (not sure which model is best) and the Cessna 188s (also not sure which model is best). The average size field would be between 200-320 acres at a rate of around 2-3 gpa. Right now i'm thinking either Ag cat or ag truck/wagon. Any honest advice/input on which airplane would be best in terms of handling characteristics, productivity, survivability, ect. would be appreciated. I know that price would be a factor, but that's not my main concern for this thread.

Thanks Alot!