You don't need wheels or skid plates to push snow. I live in an area where we mostly blow snow, but I push at the start of the season with a 420 20hp JD with a 54" front blade. Most blades are made with a bolted on wear surface at the bottom, with the bolts that attach it sticking out of the non-working side of the blade. On my JD blade, these bolts were only about 1 1/2 inches from the bottom cutting edge of the blade. So I took a 54" piece of 1 1/2" used black schedule 40 plastic pipe, slit it the full lenght on a tablesaw, and slid it onto the blade. It's kind of hard to start, you have to spread it out a bit to get it started, then pound it completely on with a mallet. But once you get it on, you can zoom down your gravel driveway and not scalp a bit. The plastic will last for years, it never hardly ever gets nicked when there is snow to lubricate it. I've seen people use metal ones made out of steel pipe on commercial plows, but the plastic ones are cheap and easy to make. You might have to go with bigger pipe for different made blades. And if it get real cold, you could probably crack the plastic, but I never have. And if you do, plastic pipe is cheap. Works for me.