I wouldn't waste the money unless your pushing light materials only.
Here's my personal experience; my new neighbor tried to use his Craftsman with blade to move/spread some old hard packed dirt piles about 10 yds each. I watched this with a great deal of amusement as he tried to bulldoze the dirt, NG.
Next he put on his tire chains, same results, NG.
Next he started adding weight to get traction, he really was quite creative in finding ways to hang concrete blocks on the tractor. Well this was much more successful but the blade frame started to bend and then he burned up the clutch belt, end of project.
Thats when I took my 35+ yr old 7hp Allis Chalmers(same as Simplicity) over with my blade ,no weights or chains. Took about 1/2 hr per pile and 1 six pack. Job done!!! New friend. Good afternoons work.
Point is the machine needs to be built heavy enough to begin with to tackle work like that. That old Allis is all steel and cast iron, only sheet metal is the hood and seat pan and weighs about 750 lbs w/o add ons.