Hi Guys, I am getting ready to build a dam and doing it cheap. I want to use my 8n to pull a small sheepsfoot roller. the roller has pads not spikes, is 5 feet wide and 3 feet in diameter. Unit weighs in at 4000 lbs. working in 6 inch lifts, do I have enough tractor to pull this? Thanks Chuck Saunders Kansas City, MO