Racer: here is the link:
http://www.turborangerforums.com/showthread.php?t=1166. Steve (Pinturbo75) originally posted about these, so credit should go to him for the find. They are $175 for a set of four flanges, with two sets of bolts (one to attach the flanges to the head, and the second to attach the manifold to the flanges). I originally wanted to get a Bob's log, but according to some angry customers on TurboFord, he's been laying low due to a sickness. I noticed he made an appearance a few days ago, but with the long line of people waiting for parts from him, I don't know if it would be wise to drop several hundred on a header to only end up in the same bucket.
Bud: Thanks! It only took a few hours and lots of measuring in AutoCAD to get the dimensions/angles of the letters and spacing between them just right. A difficulty I ran into was that the bottom of the door curves inward towards the underside of the car, and trying to measure a 3D object in 2D as it angles away from you isn't 100% accurate. I feel the overall scale of the letters is proportional, and would love to print out a template to mock up. I'll reply back to this thread when I can do that.
As for Rallye wagons, I don't believe I've ever seen one, except in the brochures. Someone correct me if I'm wrong, but the only part of the tape that would be different would be for the rear quarters and the tailgate. Nothing too difficult to fab up since they're just striping at that point.