I couldn't find that many useful pics but here are a few. The pic below shows the new bearing installed
View attachment 241786This one shows the remains of my old one.
View attachment 241787
And why my steering shaft was past it's prime.
View attachment 241788
If you remove he 4 bolts from the black bit with the pinch bolt then the steering shaft will come out and all the ball bearings will drop into the box and you will swear, then you will see how bad everthing is and have to rebuild the box.
View attachment 241789 mark the shaft so you have a fighting chance that your lock will line up with the cutout in the outter coulm ok. What you need to do with yours is file the chewed up lip on the steering columm part of the bearing, every now and again pull up the outter column ( the black tube on mine) to see it will clear it. Keep filing away until you can pull it off. Once off you can use a screwdriver or similar pointy thing to tap from the out side towards the centre of the outter column. This should colapse the bearing and let it drop out. The steering column bit carefully use a hacksaw to cut it off .