what I have done with success on smaller trees, up to 24", is first climb as high as you can, secure a steel cable, at least 1/4" and at least 100' long. Then with a chain saw cut the lateral branches when coming back down the tree. Essentially, you will have a tall stick in the air with the cable attached to the top, make sure you secure the cable in the main trunk stout enough to withstand pull from your tractor. Secure the cable so it is pulling the tree away from any structure in case it falls. Use your backhoe and dig down around 18-24 inches, you should find 3-5 major roots, cut the roots one by one, now secure the cable to your tractor and pull slowly, it is best to have someone close to the tree, they watch around base of tree for additional roots, and you can concentrate on pulling with your tractor. Normally the tree slowly falls, like in slow motion, I have never had one hit the ground. Usually the top of the tree is still 5-7 feet above the ground. Use your front loader the push down on the top of the tree, this will slowly raise the root ball. Back fill under the root ball. Remove as much dirt from the root ball. Using your front loader and nudging the root ball, you can slowly fill more and more dirt/sand under the root ball. Eventually you should be able to just roll everything out of the original hole. I have used this method for over 20 years and works extremely well. The main concern is to make sure that your cable is strong enough and long enough. You want to create as small as an angle from the top of the tree to your tractor. It may be necessary to secure at a lower point, 20-25 feet to create a small angle. You can always add more cable, or chain. I try not to use rope because it stretches too much and if it breaks then the tree trunk will snap back in the opposite direction of the pull. Good luck. BTW, you should be able to do all of this in 3-4 hours.