Thanks Di. I did paint over the duct tape, I wish I had waited to find my drill bits but I just wanted to get it assembled and painted last night so I could add the LEDS today.
My initial plan for swiveling the light bar was to have a couple fasteners with wing nuts that I would loosen. But I tried it with the screw and nuts first and it works really well. It is tight enough that the bar stays fixed, but it is loose enough to be able to adjust it without unscrewing it. I think with time it will loosen on its own and have to be re-tightened , but I don't plan on fussing with it too much. Once I get the angle of light that I like I will just leave it be.