For sale is a used Westfield MK 100-81 with swing out hopper. I believe the hopper is low profile. The main auger has a hydraulic lift for easy setup. I am the second owner, used it one year. The previous owner said he only put 50,000 bu of corn through it. I put about 42,000 bu of corn through it. We serviced the auger before and after harvest and had no problems while using it. I'm not sure the HP recommendation but we used a 4020 and it worked great.