I finished my rear ballast today. I bought a 55 gallon drum for $10, a cat 1 draw bar and 6 bags of 80# concrete mix and some rebar. Cut the drum down to 22”, drill a hole then cut out more for the draw bar. Welded the draw bar in place. Then filled it with the concrete with rebar throughout. It should weigh around 500#. Put the bushings that came with the imatch on it and it fit perfectly.