Digital BW, The Print

I just returned from a classical music weekend where
I brought some of my studio gear and did "portraits" of
some of the musicians' instruments, chiefly flute,
clarinet, English horn, and French horn.  The predominent
color on these instruments was silver, with odd bits of
gold.  The nonmetal parts of the English horn and clarinet
were black and I shoot them on black velvet.   On some 
shots I tossed in some bright colored objects to add 
splashes of color, but the predominent color scheme was
silver and black.   These photos were shot with a digital camera.

In order to print what colors there were I need to print
in color, so black-only or hextones can't do the job. But
being mostly silver and black these images will reveal 
any problems the printer has with either non-neutrality,
color casts at different values, or metamerism, just the
way black and white printing does.  I think this is the 
first situation I've run into where a RIP may be the only
solution.