I went for the look, bent a driver's side post and put a 5x7 mirror on it last fall. I still have a little bending to do.

I can't see the mirror glass from the driver's seat but with the 5-window, I have pretty good visibility without it. The only time I might want it is to see the parking line when backing up to park.
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My Mirrors
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1948 3/4-Ton 5-Window Flatbed Chevrolet

34 Years. Now with a '61 261, 848 head, Rochester Monojet carb, SM420 4-speed, 4.10 rear, dual reservoir MC, Bendix up front, 235/85R16 tires, 12-volt w/alternator, electric wipers and a modern radio in the glove box.