Drilled/clecoed the right side wheel pant front and back together after some more filing to get them to match up properly. Then mapped out parallel lines that intersect the points directly below the tires as they hang free. These lines will be used to align the wheel pants to the slipstream so they don't become big rudders. Moving along...
Hard to see in the image, but there are chalk lines running fore/aft underneath the tire
Closer look shows how the tire is not aligned with slipstream, but wheel pant will be
Wheel pant for right side ready to trim for the axle hole