projection matrix from camera path using oculus

projection matrix question:
I want to animate a cam on a path then output to occulus cams substituting these xyz positions for the oculus xys postitions - so need to get them into the 2 oculus cam CHOPs
the channels 13 14 15 control positions but getting clipping plane problems.
I want to keep only the oculus cam rotations to look around while moving along the path.
any tips?
I read Malcolm’s excellent description of how the projection matrix works
viewtopic.php?f=4&t=4872

…but need help nevertheless…

i can get my cam positions on the path with the object CHOP but missing the left/right eye offsets and then a method for creating the camera matrix
hmm