I found a guy who has a cultivator, plow, and blade (hopefully a 54A) for sale. He doesn't know anything about them. He said they came with his Cub when he bought it. He only wants $250 for all three implements. What do I need to look for with the blade and cultivator? Is there a serial tag on the blade or any markings that I can be certain it's a 54A? I know that there's a bunch of parts that go with the cultivators but is there anything that I need to make sure I have? Are there any parts that are hard to come by if they are missing? My Cub has the touch control.