What's the best way to paint the Laverda and 1000 lettering on the polished aluminum engine covers?

What type of paint is best to use ? Is it better to abrade the surface to help the paint adhere?
I was thinking of using sandpaper to roughen the surface and then applying the paint with a brush, wiping away the excess with a rag.

What type of paint is best to use ? Is it better to abrade the surface to help the paint adhere?
I was thinking of using sandpaper to roughen the surface and then applying the paint with a brush, wiping away the excess with a rag.