I mounted mine on the forward most canopy bow and I shortened the legs by about a foot so that the lights sat closer to the roof line. In the future I will probably weld this assembly to the outside front of the bed so I can still use the cover if I want. However, I kinda like how it is now because I can quickly remove it if I need to.
I got the lights on sale at harbor freight for like 8$ each. I then installed 24v 100w bulbs and spray painted them since the chrome just didn't look right. They are powered from a McMaster Carr distribution block, four 24v relays, four in line fuses, and are switched from an under dash switch buss that I made.