For those interested in mounting driving lights, just this a.m. I found a slick approach you may want to use. It was a bracket - specific for front mounting driving lights - the bracket mounts to the license plate bracket, then provides mounting points for two lights. Neat in that there would be no new holes to drill - provided you have a front plate.
Now, do you think I can remember where I saw it so that I can post the link!?!?
Guess I'm having a senior moment.