These pictures are old but it may give you an idea as an alternative.
Across the top front of my ROPS (inside the windshield), I created/installed what I call my "crap bar". This is a 3/4" steel pipe which is the same size as most ATV handlebars and racks. this allows me to utilize ATV type accessories. It's also the diameter that many mirrors want to clamp to.
Ingredients:
(1) 4' piece of steel pipe, threaded on both ends.
(2) end caps
(2) muffler clamps (I believe they were 1 3/4" or 2")
(2) 3/4" pipe clamps.
(1) can spray paint (ROPS grey from the dealer).
Screw the end caps on the 4' pipe.
Paint everything.
I put the muffler clamps around the front of the ROPS with the bolt heads pointing approximately towards the drivers chest. Snug them up so they stay in that position but don't torque as you may need to adjust.
On the lower bolt head that's coming off the muffler clamps, screw the 3/4" pipe clamps on until they're on all the way. Align so they'll accept the horizontal pipe. In my case, the upper bolts are hidden under the ceiling panel. You may want to cut the uppers off just for looks.
Put the horizontal pipe on those clamps and screw the covers on.
Adjust so everything is the way you like it (positioning and such).
Tighten everything down.
You can now hang mirrors, spotlights... from this. I like the RAM-mount accessories myself.