You know that dials with "is3d=1" set can be applied everywhere? The only drawback is that they would not be curved, just planar rectangles.
I Don't quite understand - as you have the 3d model, you also have some coordinates. So the hard part is the scaling. I wouldn't know where to lose a whole day. Should take an hour or two... (that's what I recall it took me on the golf cltc mod)
Couldn't you also implement using the flares like on the headlights .....some Porsche Cayman S has has the flares. In the .ini......at the beginning, and if you set it up, they would work...right? I don;t know about the blinking part.....maybe a duration in the views .ini......