Jeep Gr Cherokee Diesel - Worth the $? Reliable?, Could tow?

The horsepower and torque of this engine is about the same as the first Cummins that came in a Dodge and i dont recall ever seeing one of those going 30 up a hill with far more than that behind one. Our MB has 210 hp and i think 420 lbs tq and i would put money on it that it would pull that 3800 lb boat up a hill much faster than 30. I pull my enclosed bike trlr with a couple bikes which i know is lighter but can pretty much go as fast as i want.