two wheel pig. I agree that I would go with a standard (non-coe) door for the rear. I don't understand what you mean about your door not being slanted, as I was thinking they all had slanted windshields (not perfectly vertical). But, if you have stretched it and everything else, then you are apt at fabrication. Get two doors (one of each side) and use the drivers door rear portion of the window area to fab a vertical (front) for the passenger side. You would then end up with a round cornered, square door. Just my input.
