I have wanted a headache rack and decent roof for my Mule for some time.
What I came up with is a combination roof, headache rack and hunting/observation rack.
The roof/floor is 3/4" exterior plywood sealed in flat black porch paint.
The basic frame is 1" angle iron.
I used race car tabs welded to the existing roll cage assembly to mount solidly.
It also has 1" heavy wall square tubing on all 4 corners so I can drop on a handrail for observation or hunting use.
I can use it to stand on to fill feeders easily.
It makes a nice shade and is bigger than most tops for even more shade!
It makes hauling longer stuff easier as long as you don't overload it.
Here are pics of basic rack on the Mule.
Here are a couple of pics with the corner posts dropped in for hunting or observation use.
They are made out of some chromoly tubing I had laying around.
For hunting use, just droop some camo net over the ropes and sit in a folding chair.