Are we talking here about clearing the line for a good reason or just for the fun of doing it? If it's being done to accommodate a charter or to do some necessary work out along the line, adding a flanger to the wedge plow currently on No. 52 would not be that difficult. Since the locomotive has air brakes, design a way to use an air cylinder to raise and lower a flanger blade mounted behind the plow blade.
Nothing wrong with doing it for fun, in which case let's do it the old fashioned way, with a wedge plow, picks and shovels. Let's build a flanger based on the original design and have at it. A steam-powered flanger train should be a great money-maker for the WW&F.