What are these mounts you speak of? I would've assumed you would just drill a hole in sheetmetal and bob's yer uncle.
If they go down inside, around the fender or hood, what about just taking some thick sheet aluminum and turning it into whatever shape you want? That can be done with minimal investment since there doesn't need be any welding involved, depending on whether you have a place and tools to *bang* it out.
Maybe provide some links to lights you'd LIKE to use, then someone can figure out what the best way to attach them is.
Personally that's the last place that I'd want lights. It snows here so I'd be fighting them in winter, while they're not high enough to keep from casting a deep shadow from the hood. Seems like bumper/grill or roof, either would be better for just about any purpose except losing the ability to stick your arm out the window and re-aim them quickly.
