After struggling with different do it yourself ways to save a buck, I threw in the towel today and picked up a new ballast box from my local dealer. I plan to borrow holland pavers that are bordering my garden fence to go in the box and filling in the gaps iwith sand. 740 lbs total hung directly on the three point hitch. 620 lbs without the sand. Placed my order for 1000 yds of clean fill to extend my front lawn over an old marshy creek bed. Should be much safer with the ballast.