Passenger side mirror Options

[SKL1]

Been putting this off for a while (40 or 50 years depending on the car) as I don't want to drill holes in a perfectly good door but finally want to put passenger side rear view mirrors in both cars to make backing up easier.
I've heard you can rotate a driver's side mirror but not sure that really works.

What have people done and what's best source for a OEM mirror?? I'm not a fan of aftermarket mirrors. TIA

[dcecc1968]

I installed a passenger side mirror this past summer. I use that mirror a lot.. for blind spot (yes there is one on the passenger side) detection when changing lanes and to back into a tightly fitting garage. Would convex be better, yes, but flat works fine.

I don’t have good paint and might have been more hesitant had I a $4000 paint job, but I did it by taking off the drivers side mirror and measuring the drivers side holes, measuring again and then 3 more times using calipers. I took the door card off, but after discovering I couldn’t drill for the inside without taking out the glass , etc., I taped the outside, used an awl to tap a divot for the drill and drilled it from the outside first using a small drill bit to make sure I was close to center on the welded nut, then increased the bit size. Was I off a little, yes, was it that big of a deal, no as I was able to work the bit a little to correct. I hit the hole edges with some rattle can paint to prevent rust, and voila!