You REALLY need to twist that bush hog 90 degrees if you ever plan to survive operating that attachment as pictured. And reinforce the sidewall facing the cab. Lexan or other polycarbonate to shield the operator. You will NOT have time to react when it throws a chunk, or worse a blade, into the direction of the cab.
Trust me, I could tell some stories about flying debris with cutters.........
First off, let me say that I am not planning on using this is in the same capacity as the road maintenance guys. I own a couple properties that I tried to keep cut down 2-3 times a year. Lots of blackberries, grass, small alders, etc. When I go out to the properties, I often need both my bucket and a mower which has required me to bring two pieces of equipment. I am hopeful that I can do it in one trip from now on.
I plan to keep the brush hog low to the ground while running it, and with my X I sit pretty high up. That said, I have also considered installing chains on the bush hog as well.
It would be interesting to entertain the engineering of a 90 twist to the 3 point.