I've just replaced a fender after some old accident damaged. Took a lot of work to get everything lined up, needed some spacers at the bottom of the fender. The ground effects still need some work at the fender, I don't really have a good reference so I'm hoping someone here has a good 99-03 image or can take on showing this area, something like this closer/hi-res:
8A_800.jpg
A lot of the metal under the ground effects is gone and I think I may end up with a gap up front, but if I can get it close and the door gaps look good and nothing hits I'll be happy