What a nice looking bike. I have a good one for you.

You can still buy the colored anodized aluminum bolt sets. They come in many colors. I don't know if there is a yellow that is an exact match. The blue looks like the blue on your wheel stickers. On one of my bikes I have blue chain ring bolts, blue derailleur pulley bolts, and blue derailleur pulleys with nice sealed bearings,.... I could add bottle cage bolts, derailleur mounting bolt, a seat post clamp bolt, and crank bolts too.

They are aluminum, you most likely would be saving a little weight too.

And yellow cable housing is available. Or Just about any color if you went with something else.

The bike with blue chain ring bolts, pulley bolts, and pulleys.........

You may also like the color of these Pariba pro Paris-Robaiux tires too for the future. I had them on a Litespeed with the yellow letters on the bike, it looked pretty good.......