I've thought this. If you were to get the front bar, front guards, that should do the front end.
Rear tray/lights (wiring is different I believe, also) and that should do the back end.
You would only have the suspension differences, which I'm not sure about compatibility, but assuming you could get a Raptor setup, it is in theory the same basic underpinnings, so why wouldn't it fit?
Maybe ask this on the Aussie Ranger Owners Facebook page, as we get the same trucks as you've shown above (except we are on PX3, not PX2 now).