I recently came into possession of some long, heavy galvanized steel tubing. One is 6 in diameter and one is 4 in diameter; both 20 long. I was hoping to make a field leveler/smoother/drag out of them. My tractor is 35hp 4WD and I have sandy soil. I was thinking 10 wide so I could get four pieces out of the material. I have a ridged field from years of the previous owner discing between orchard rows, hence I have ridges. Any ideas for the best use/design using these pipes?