They don't fit perfect. We just went thru this on my car and I have a NOS pc. We test fit it getting ready for paint. It also seemed a hair long but not as bad as yours appears.

We found that if you fasten the outside clips and fasteners first and work your way toward the center it all works out. I'm still trying to figure out how to correctly use the center clips that attach to the panel and fasten the middle. its almost like the clips should be screwed to the body and then the panel snaps directly onto the clip. Anyone know for sure?