How to render a stereoscopic side-by-side image in a scene for VR viewing?

What would be the best way to render a stereoscopic side-by-side image in a scene rendered on a plane or (quad) surface for VR viewing? I’m using the Unity version.

Ideally, I’d also like the gameObject to have a billboard property of always facing toward the camera (on the y-axis) since an angle view of a stereoscopic image would distort the stereo camera eye offset.

Best Regards,
Darius