Externally, there's little work to be done.
Internally, you have to replace the entire headlight mount, brackets, and adjusting assembly with one from Europe, which is a large portion of the front bumper. And then buy the lights and covers on top of that. I don't know exactly, but you're talking at least several hundred dollars in body work.
You wouldn't think so, but It's quite an extensive modification that requires a lot of money and a lot of work just to get those lights to mount.