Is it possible to combine two github engine branches into one?

hello?

I’m interested into VR.
Is it possible to combine these two engine branches?

https://github.com/NvPhysX/UnrealEngine/tree/MultiRes-4.12
https://github.com/Oculus-VR/UnrealEngine/tree/4.12-ofr

Forward renderer with Nvidia VRworks features would be a pretty significant frame rate boost for vr.

Thank you.