Here are the mirrors I have on mine. They are Pathfinder brand that I found an NOS set on an online auction site. I have never seen another pair after I found these. My grandfather put these mirrors on when the tractor was new, and I just happened to be lucky to find a replacement set. They are smaller than you typically see for the west coast style mirrors., if that helps at all. When the mirrors are mounted this far back, you have to lean back in your seat to look at them and have a decent view of what's behind you. The ideal place is probably about in the middle of the doors. As far as I know, there were no factory options for mirrors other than the small one located inside.