A while back I asked C Hines about the badge placement on my speedster.
For this particular emblem, he stated:
Reutter badge; PS only, 2 3/4" above the bottom door gap (to bottom of Reutter badge), 1/4" left of center
He said this measurement was taken directly off his original car.
With the linked image above, I read that as "The two holes should be located @ 100mm up from the bottom of the door edge and equally spaced from side to side (hence the '=' on each side of the center line.)
YMMV,
Ted