These are nice saws. I have a 103.22170 that I am about at the same stage as you are. The x161, x160, and x170 are almost the same. There is a x160 manual on vintage machinery (but not the x170) and the parts diagram looks exactly like the x170. The x170s were gold and the x160s were the blue-gray seen in post #41. The wings that I found to fit (20" table IIRC) are the waffle style.
Careful cleaning the machining on the face. Many of those are plastic overlays on plain aluminum plate.
kngkong's pic shows the wing, I got 2 like that for mine.
I just used Rustoleum metalic gold with clear coat. No wet sanding.
Then, I can't read the reflection on mine either. Nice job.
Dave.