I built my own!
Your tractor is a tad bigger and stronger than mine, so ... I'd recommend a little more weight ...
I designed mine to be compact and close to the rear of my tractor axle, concrete weighs roughly 145 Lbs per cubic foot. I wanted my quick hitch to be recessed into it, which also allows for some weight to be carried outside of it, but still narrower than the tires.
I bought a sheet of 1/2" plywood, 6 - 80 Lbs bags of concrete, and a quart of paint, (and used other stuff I had) cost me less than $100 2 years ago ...
I built a frame out of the plywood and some ripped down 2X4's, added in a couple tie downs, a couple of pipes ... I used a piece of 1/2" black iron pipe that I hammered a piece of 1/2" rebar through for lower pins, and welded some stuff to make the top "pin" ... Added a 2" receiver hitch ...
I collected some rocks from my property to "stretch" the concrete ...
I had a bunch of old nails I had pulled out of a bunch of old decking previous owner had left in a pile, before burning the wood, plus some scrap bolts and metal bits ...
The plan was once the concrete was set, to remove the two spacers with the purple "X", and the red circles are little pieces to screw the sides to. Blue masking tape was to just hold it in place until concrete was poured, they yellow tie down was left behind in my semi-trailer, they have a metal "E-Track" fitting on the other end, the screw not only holds it out away from the wood wall/form, but aids in it not getting pulled out.
Started filling with concrete, rocks and metal bits ...
The sides and back are higher to have small walls, so I can carry small stuff on it ...
I was mixing the concrete with a paddle mixer in my drill, and added the nails, that didn't work very good, I do not recommend! Should have just dumped them in the box!
Had some free rocks left over!
Let it cure a couple of days, and added paint!
