Here is an update and thank you for replying.

After feeling encouraged by Mark2590's report, made another attempt at the lock cylinder.
Unfortunately I was mistaken in thinking the front half of the cylinder is broken free to rotate freely. It is turning but not far enough to line up with #1 mark. Tool does insert and catches the black spring but not deep enough to release the black ring.
The black ring has a slight wiggle and I can tell it is held on with something. With the tool inserted it tightens up.
Anyway, tried to completely break/separate the front half using a screwdriver/vice grip but not getting enough grab to exert any force on it.
The holes are less then 1/4" away from lining up and would like to get to that point and attempt the ring removal before moving on to the more extensive operation.

One way or another the cleanest and most expedient process will be to go ahead and remove the replace the lock assembly, core and black ring, all which I have.
If I can somehow drill away the front half of the cylinder without disturbing the black ring and make another attempt at duplicating Mark2590's success that would be nice.

For accessing and removing the steering lock assembly:
After removing the knee pad under the dash I am facing a black metal corrugated duct across and under the steering column.
Most likely due to me using the wrong jargon I haven't had any luck finding info on this piece.
I can see several screw heads on the left side which appear to hold it to the door opening with the vent that supplies air the to door glass defog grill.
Will removing these screws help swing this black pipe away and off the other end at the center console?
I need to get a closer look with a good light to see how the right side is held on.
Removing this metal tube will be necessary for lowering the steering column and accessing the steering lock assembly.

Many reported being able to remove the lock assembly without removing the steering wheel.
Just for the exercise removed the airbag and saw the infamous #10 allen screw holding down the steering wheel.

Each attempt at this involves an hour each way for a visit to an elderly relative so it's been slow going.