3 point seat belt roll bar attachment

[cwsohm]

I've seen a lot of posts regarding attachment of the seat belt shoulder strap anchor to the roll bar in a blazer, but most of them discuss drilling and welding. Has anybody found a clamp set up that will work? I came across a heavy duty pipe clamp that is rated at 749lbs on ebay.

http://www.ebay.com/itm/DOUGHTY-HEAV...item4d0396e463

Seems like this could be easily modified to attach the shoulder harness of a 3 point belt to a roll bar. I'm thinking it would be strong enough if it is rated at 749lbs, and would allow you to easily adjust the height if need be. Thoughts?