I custom made the setup using a Vicky Brit rollbar that I welded a 1/2" solid bar across the bottom, then followed with a 1/2" "L" piece of iron across to make a rib, that I custom bent a piece of 1/2" strap around the inside perimeter. To this I used a rubber glass mounting "H" strip with chrome stiffener to hold the Triplex safety glass in place. I made the light housing out of 16 gauge iron, and yes there is Bondo here and there. Ran the wiring down through the rollbar and tied into the harness. Really works well to cut down on the wind as well as stiffen my "cosmetic" rollbar.
Bill