Need assistance with options for low profile led roof mount brackets

[tstehle]

So here is the challenge, I would really like to mount a Rigid Industries 50" straight led light bar above the windshield but need to find the lowest profile roof mount brackets. I know the radius bars will work with the Addictive Desert Designs windshield mounts but I am really trying to match my straight 40" on the front with the straight 50". I would like the OnStar antenna to remain the highest point on the vehicle as I don't have much clearance to work with above that. Anyone have any success stories with your own installs that you could share. I've tried to contact a few of the manufacturers but this does not seem like a common question that they are prepared to have an answer. Thanks everyone.

[never_rested_24-7]

http://www.n-fab.com/products/sfID1/180/sfID2/63/sfID3/68/productID/605

 

http://www.socalsupertrucks.com/2014-silverado-sierra-1500-50-inch-led-light-bar-roof-mount-bracket-kit.aspx#.VBZRvIHnaBY

 

https://www.customwheeloffset.com/offroad-led-bars/custom-offsets-store/21/50-inch-single-led-light-bar-roof-mounts-many-makes-models