My dad has a m5140 it is a workhorse.you may want to try one out. I'm very impressed with it. If you must have hst take a serious look at the mx4700 mx5100. Forget about the backhoe I don't think you would benefit from the cost on that size property. I would recommend a minimum 6 foot cutter with the bigger tractors. You want to try to cover your tracks.dads m5140 handles a 8 foot rear lift cutter with no problem. Get 2 remotes on rear and 3rd function for loader. By the way the 5140 has all 4 ag tires filled and 2 sets of rear wheel weights and with the loader maxed out at over 2000 pounds it will not raise the rear tires.