I am going to tackle the '69 Shelby. The front valence does seem to be too wide, but after clamping it in place, it seems to take on a slight downward bow which I think will be fine. I will have to remake the side marker lights as they got in the way of filling and sanding the seam, and they were pretty faint anyway. I built up the inside with some sprue glue, and am debating whether to try to recreate the body line that travels down the length of the car. The rear valence connection also needs some filling.