I took a slightly different approach by mounting a bar across the top of the windshield. It sets perfectly against the headlight guards when folded forward. I just anchor it with one strap.
Mike Newton 1973 712M (sold)
I do not like this word "bomb." It is not a bomb. It is a device that is exploding. Jacques le Blanc
I think Scott and Doug both have the Austrian brackets that they got from Patrick at CWRI. The difference is they welded the brackets to the top of the bumper instead of mounting to the front of the body (just outside the grille). They even have the Steyer Puch stamped knobs for the bracket that holds the window up.