I spent several months contemplating the mirror issue and came up with SPA race mirrors with flat glass. Not the biggest in glass area, but they're better than nothing and also look good mounted on the door top. The passenger one is mounted slightly further back so as to prevent the A-pillar from obstructing the view from the driver's seat. I fabricated the stalk bases to follow the contours of the door top flange. To adjust them, one has to remove the inner door card (just held in with Velcro on mine and use an allen key on the underside. The attached photo hopefully shows this.