5' blade is too narrow for a 54" tractor. Really need a 6' blade. Trying to clear snow with a 5' blade on a 54" wide tractor is not going to be productive. You need to be able to windrow the snow well off to the side of the tractor.
I know deals are appealing, but I am amazed at the number of threads where the focus is whether a "cheap deal" implement will work. A lot of people shoehorn the wrong implement onto their tractor just because they found a deal. Why not just look for the "right" implement? Function should be the primary factor, cost is secondary. To me $150 for the wrong blade is $150 that could have gone towards the right blade.