Dave, I have not clipped the bottom. With all due respect, I do not see how clipping the bottom will cause the panel to spread so the sides slip over the shoulders of the door famework. As far a being to high, the screws lined up perfect horizontally. All eight screws on each panel are started but I have not tightened them completely because that will mess with the straightness of the outer flange of the panel. I am being very gentle here, I want it perfect when it's done. I have them both on and they look awesome!!
I am working in a cool shop (50*). Some day when I have time I'll park the car out in the sun and let things warm up good inside. Maybe I'll gain a whisker of expansion and some flexability and get them to seat properly. Right now I don't want to force things. We'll get this right.