Still waiting on machine shop activities.....
Decided to clean up and paint swing arm, check bushings and collar.
Collar is smooth on both ends.
Appears collar is in good shape, still had a lot of grease in there. My measurements show 0.0008" clearance between phenolic bushings and collar, so I decided to leave for now. I did order some Kibblewhite bronze replacement bushings, and may install those at a later date.