question stereo with augmented reality

[Darkmax]

im just wondering if i have two cameras on my hmd what is the best way to do a AR application with stereo vision.(the wrap920AR from vuzix with resolution 1024,768)
For example i want that the left camera show on the left eye and the right camera on the right eye, and of course show the 3d model if is seeing a mark of AR and also i want a GUI on the screen where i show text of what is seeing.

So i dont know if i create two windows and on each windows create a viewpoint to link it with each webcam, but i have two make a copy on each model to display on each window (well i think so) or is there a way that viz can handle in another way?