I also have a VR cockpit game in the works, and I have also solved how to snap the players camera HMD to the in game location of my players avatar head in another project by mapping the button to trigger it so I can do it anytime.
I used the original vr template reset HMD position and orientation node.
But I also have a constriction script code that attaches the camera to the players head on on begin play,
cant share pics as Im still at work:(