I also agree that with 4.56 gears and an overdrive transmission, it will motivate fine. You can move LOTS of weight with gearing. It's not gonna win any races or pull 10,000 pounds but it will drive around and pull a boat or something. Hell, I've pulled my car trailer loaded with a 4x4 extended cab Ford ranger behind my Nissan Xterra with 3.3 and auto............have you ever driven an Xterra with a 3.3l? They are absolutely gutless turds, and it pulled just fine albeit a bit slow.
Also, that's a GREAT deal on that engine, jump on it!