Thanks Peter and Gary. So if I read you correctly, I would need to install the U-shaped clip around the cut I just made such that aligns with each of the 4 (four) side holes I drilled into the side panels for mounting the cover. Is this correct?
Also, what about the one hole on the bottom/base of the side cover that goes horizontally (down)? I assume the same thing? When I cut my panels I took off minimal material and kept fitting them as I went. I did not/don't have a template so I am not sure how close I am to the original cuts that the factory did. What I do know is I probably have more material than they did as mine are a very tight fit right now and require a bit of finagling to get them installed and or removed. I think the bottom hole would require me to remove more material toward the inside of the car (in order to get a u-shaped clip installed).
thanks again for any insight.