Late, as usual, but here's mine.
I think the holder is from a G2 Camaro. I weakened the spings so that the license plate would lay horizontally while I filled the tank - I remember fighting with them and trying to wedge the gas cap to hold it open.
The magnets sit where the rubber-bumpers would be on the Camaro. I had to play with it a little to get the plate to be a uniform distance from the roll pan.
The lights are from Kuryakin (I see I didn't hook up the ground - added that to my list)