I have a 2011 5035 HST, which is basically the same tractor as the 4035, with just a little more horsepower and bigger tires. The 35 Series are large frame heavy built tractors with a pretty spacious operator station. The 2009 would be pre-most of the emissions engine, and should run good. It is direct injected with a grid heater and starts pretty easy, not indirect injected with glow plugs. A lot depends on condition and how much they want. But, I really like my 5035. It's my go to big tractor.... The only problem I have had with mine is I tend to yank myself onto and off the tractor using the steering wheel, and the power steering unit under the dash leaks a little from misusing it like that. But not where the hyd sump level ever goes down.