The 1974 Stratos has a very smooth flare around the rear wheel arches, without the crease line that runs the length of the sides on the road and later rally versions. So I've built up the arches with some putty. It looks like the part of the arch that is attached to the main body is a riveted on panel, again sans crease line. Will have to build this area up a bit too and maybe drill out some holes for tiny rivets.