Getting IR to work for you is not achieved instantaneously . There is just one realistic approach over time: try, and try again.
Yo make the matters more complex by combining IR with pretty heavy data shifting. This is like climbing out on a thin limb and it might snap. Not that I am firmly set against advanced processing, so far from that, but the processing must follow an idea made before the shot actually was captured to give a true photo.
It'll all come together in due time. Don't stop.