Tube swap was a success!  It was (much to my surprise) pretty uneventful.
I cleaned up the chassis and original yoke, since it was so dirty!  

:
 
 Here is the new tube with the yoke from the TV set.  There was a rubber stopper glued/taped on towards the neck board end to prevent the yoke from sliding.  I carefully cut the tape and was able to peel the stopper off:

Attached all of the original strapping, grounding and degaussing parts over.  Installed the original yoke and rings (sorry, cell phone pics!):
 BEFORE
BEFORE:
 
 Hard to see here, but the top was darker at the horizon line from the bright blue sky color getting burnt in.
AFTER:
 
 After a few more tweaks:

In other Pole Position news, I received the replacement speakers for the front and ordered the new mat material.