JustGary, The mounting bracket is home-made from some scrap I had laying around. It's really very simple. The "U" piece that actually clamps around the ROPS is realy 2 "L" shaped peices, the cross piece can be made from almost anything. The tool box is............Craftsman of course. I think the key to mount that will hold the weight of all the stuff that ends up in a tool box is, to build it so it fits tight between the ROPS. I had to tap it in with a hammer.
And yes It does block the view a little but has not caused me any problems. My tractor is HST and when I hook up I'll just get real close( a couple of inches), put the tractor in low range, and from the right side standing on the ground I will use the HST pedal to move the tractor in to final position...Gotta watch yer feets.
Hope this helps...............KC