I really enjoy pulling with my dodge diesel, but in that price range,
I would stay with a gas truck at around 100K to 125K if you can find one.
may have to deal with some beats and bangs at that price,
two wheel drive, will also help you if you can deal with a two wheel drive
my dodge 2500 is a 2x4 and has served me well, I just know its limitations and keep it out of the mud and soft sand.
also the newer models, no matter the brand may have that dep additive for epa compliance, you would want to avoid that, if possible,
would be nice if you could get a maintenance history report on the vehicle.
some company trucks may have a lot of miles, but have received very good maintenance logs.
good hunting and let us know what you find.