Like everything else, racers have already done it. You're right about using a wink-style mirror (which is 4-5 mirrors at slightly different angles) but a stock rearview mirror has a built-in dimming ability. An auto-dimming rearview mirror would be the best.
A rearview mirror mounted on the left can be aimed and mounted any way you want (vertically?). A wink mirror gives you a great view, but not from the left-hand side. Why not both!?
Another exotic option would be to have a periscope mirror like the Isdera Imperator or Isdera Commendatore. I'd like to see a car with a periscope mirror on a hinge that also acts as a vent. (Kill two birds with one stone, etc.)
Let's see...what else do I know about mirrors? You can buy a carbon fiber dash mounted mirror from places that sell racecar parts. Carbon is always cool. Or instead of going old school with a dash mounted mirror, you could go JDM and do some wing mounts on your front fenders. Those might not be very "aero" though, lol.
Since some of you guys on this forum don't hold back on the aero mods AT ALL, the ultimate setup would be to mount the driver's seat on the centerline of the car and use multiple interior rearview mirrors. A center driving position is superior for just about everything. It is safer in any kind of collision. Visibility is superior since you don't have an A-post in your blind spot. A car designed around a centered driver's seat doesn't have to have such a rectangular greenhouse. Rectangles aren't very aero.