Ok, a little late but like most scratch built projects this takes longer than planned and evolved quite a bit as I went.
Here's what I started with. 1.5x3 aluminum rectangular tube, Surco gutter clamps, an bunch of nuts and bolts, an old beat up drill, an angle grinder, and some extra scrap metal.
As tempted as I was to mount the lights to the bar, I figured I better make the brackets first so I know how wide the bar would be. I could only guess so I knocked these out. Later I changed the 2x bolts for the crossbar to a 3x in a triangle.
Four Daylighters are going on this thing. I know the LED bars are better but ever since I had my Tamiya Blackfoot as a kid, I needed Daylighters on a proper vehicle at some point in my life. I spring for the LED ones since I had a bit of a mixup at 4WheelParts and basically
had to spend the money. Ugh. Anyway, I got 'em. In addition, the 17-year-old in me is getting PA speakers.
Measure thrice, cut once!
I drilled 1/4" pilot holes all the way through and then drilled the top to 1/2" for the mounting bolt...
Then used a 1-1/8" hole saw for the bottom to access the nut and have room for the socket.
Voila!
And the test fit. Speakers will go up later. Now I need to figure out how to run power to these things.