Corax, The vertical field of view might have to be enlarged as well (to address the flair isssue). In fact, if you put the lateral and vertical field of view together, it might be easier to incorporate a zoom lenz, or as an alternative, equip the camera with a wide angle lenz and zoom the cockpit display image on the MFD (Multi Function Display).
An evaluation or transition period might be called for with two pilot programs. One pilot would use the IR display while the other remain on the goggles.
An eight-way cone shaped hat switch might be incorporated on the cyclic or collective pitch stick it adjust the camera angle of view. (or similarly the tilt/pan function of MFD).