I was thinking of trying to use a blow torch to help 'encourage it to bend but I am struggling to work out where to hold it when I hit it. I don't want to change the bend that is already there or break the hinge pin (both with red arrows pointing at them) although the hinge needs about and extra 30 degrees of bend.
That is why I was wondering about a wedge behind it when mounted to reduce the affect and then perhaps mounting another wedge inside the door where the hinge fits.