Removed the deck that shields the blades. It was heavier than I expected. Hurt my back a bit lifting it. Seems overkill for what I want to do. Removing it made the mower look taller and sleeker, almost like something to race. Also drained the oil, removed the throttle control and the last of the belts and pulleys on the underside. Also got the main pulley that attaches to the main engine shaft loose. I feared this bolt might be my undoing, but it came off pretty easily. Ready to pull the motor, but going to give my back a rest. In the photo you can see my candidate for a blade (in green). Used to retrofit string trimmers for heavy work. 4 or 5 of these should do the trick. Need to figure out a new deck now. Also found a nice little electric switch that can signal braking to the controller (I think).