I am going to re-calibrate my design to fit better with zenix's version. I can live with using a thread adapter kit. (I didn't know those existed off the shelf)

It is quite difficult to get the scale perect, even with the side-on shot. The wide angle camera and perspective throw off all the non planer dimensions. Even with my CAD software set to a 35mm perspective view I find I can't quite match the perspective of the baseplate and the round portion at the same time. Oh, and the screw pivot on the actual prop isn't even perfectly centered left-right. So anything we do will have to be just artistic license and be close enough.

The image below is calibrated so that the shaft is 0.5" then the rest of the planer dimensions are put down.