VR for all devices

i have HDK2. i have its own camera,display scripts to work. Unity VR examples has different scripts and HDK2 will not work this examples. I also want my game to work on android platform with google card board. for each devices and platfom, should i use different scripts?

I don’t have a HDK but I have developed a system where you can develop for GearVR and GoogleVR (cardboard) at the same time. This requires custom editor scripting to make the required changes between the platforms.