Looking for a more detailed dimensional drawing for the 6" display

I need to make a 3D printed cover for the displays. I’m making a large clock and will need four of them. $80 right now is a bit steep, so I’d like to use this time to design what I need. However, looking at the datasheet was… less than helpful. The stated dimensions do not include the interior holes, the diameter of the D.P., nor its distance from any point of reference, not to mention the corner diagonals and segment thickness. I seriously doubt that I’m the first to need this information. Does anyone know where I can get it?

It seems to be missing the decimal point, but it’s a start. First I have to download Fusion to open it.