So I figured I'd update this thread. I got the trim piece back from the detailer after having it coated to match the rest. A few things I figured I'd point out. Someone linked the clip pieces earlier in this thread. They are not the correct pieces.
Factory clip on the left is gray. The part number on the bag is the white one. I made them work by cutting the white clips shorter. The white fastener that clips into the hole on the fender is slightly larger than the grey one. It works but I'm going to try and find the correct ones incase I have to swap them again.
Aside from the fender liner, you need to remove this piece behind the rear wheel to access some of the other clips toward the bottom. Screws are circled.
I was able to access all of the clips from inside the wheel well except for the circled spots. They are above a piece of metal and I don't know how you'd actually access them to compress the clip to remove the flare. I just yanked this off and broke them since I had what I thought were the proper replacements.
The trimmed white clips that I ordered had to be used for the ones I broke since I was unable to access them for removal.
When putting in the plastic piece that needed to be removed after the fender liner to get to the rear clips near the bumper, there is a plastic tab that you want to insert before starting your screws at the top and bottom to keep it lined up.
It was pretty straight forward for the most part. I took my time to not scratch paint or break existing clips but it was pretty simple overall.