Will there be enough fabric in the shirt to do all the pieces? The arms especially, will be fuller in a CW jacket, than on a modern shirt. And the cuffs will need to be cut off. Will the arms be too short as a result?
Looks like there is a yoke at the shoulder too. That would normally not be present in lining a CW jacket? Normally you want the lining seams to coincide with all the seams on the jacket body, so it will not bubble and it will drape properly. (I typically stitched the lining on with the jacket inside out; so it would be a bit slack when turned right side out. That way it will not "pull" when moving around.)