Anyone have the factory holes exposed for a LH sport mirror

[71CHEVYSHORTBED402]

1971-72 Chevy - or so.

I just replaced the LH mirror on my 72 driver (needs gaskets and a RH mirror yet - "good enough"). Anyway, the topic of mirror placement has come up before. Just seeking confirmation for the money pit.

Below are pics and measurements I took from the 72. If someone can confirm or correct these measurements for proper installation it's appreciated. I couldn't tell you if these mirrors came factory, because there are other holes in the door, and no mention of mirrors on the SPID. Edit: The LH mirror isn't factory, for whatever it's worth (pardon the pun). Mirror was broken. $23 for a nice OEM.

If not a factory sport mirror truck, perhaps the mirror was installed too high, based on a post or two I've seen. Not that the illustration has much value, but my mirrors are mounted approx. the same height as the image in the assembly manual.

On a side note, I should have drawn a line along the center of the body edge for a more accurate measure (sun, bad eyes, better pics). I'll hit it again pending a RH mirror and gaskets.