Hi,
Yep, I worked on photon/oculus integration, I'll ask the owner of the project if I can share this.
basically, completly abstract the implementation with a proxy, this is the best way.
1: other player must see you, even tho you don't have a character in your own instance, since you use OVR. So you need to work on a system that when is mine has no "character" and when not is mine has a character.
2: don't touch the OVR setup, simply get it's position and rotation and feed that to control the "character" model on the other side of the network.
Does that make sense?
Bye,
Jean