Many parts are originally “yellow” zinc-plated on the SM, even if on my particular car, the yellow color has been replaced by a “rust” one 😉
So, following examples like Othello (check his website here, but in french only), I decide to have parts zinc-plated, the ones that were originally plated, and also some others, to protect them better than with paint.
Here is how it looks like, presented the Othello way. Should I say that it took a lot of time to obtain such a result? To get good results, everything has to be cleaned, some times sandblasted and always brushed.