just sharing. heres how i made my light bar rather simple, just a 1/2 x 1-1/2 x 18" aluminum used the bolts under the headlights that hold the front cowling in place.
removed the windshield and cluster to access wiring for the lights as well as to change out existing light bulbs, tied in aux lights to head lights key switch.
NOTE: while cluster was out i worked the connections so as to remove any corrosion and restore better connectivity. ... this also allowed my fuel Gage to start working properly.