Finally got round to replacing the hinge. Managed to do it without removing the window or the lock section of the handle. I have the old style hinge, but could only find the new style replacement.
The difference in the hinges is on the handle side, old style has its fittings at 90 degree where as the new stype is at 45. Fortunately the broken part of mine was on the door side so I manged to combine the new the new door side with the old handle side (hybrid door hinge
). I will say you need to keep the old screw that holds the hinge inside the door handle as the thread is different on the two styles.