They are nice mirrors. Be aware that it is difficult to adjust them once they are installed, and to install them (or adjust them fully), you need to remove the door panels (depending on where they are installed). If you are having them as part of your build, it is easier if they are adjusted for you before the door panels go on.
Once installed, the entire mirror can be swivelled horizontally to adjust side to side vision, but not vertically, without loosening the holding nut inside the door. But, they look great on a Speedster.
I had mine painted body colour, except for the rim (which was powder coated to match the rest of the trim, but can just be left silver).