The only color profile to use is the printer's: there is no "magic bullet" profile.
How are you getting this image reproduced? Thousands printed either lithographically or digitally? If the former, you should be able to get a high-resolution color proof (often referred to as a Matchprint, but this name, like Kleenex, is actually a brand name that is oft used generically). If digitally, you should be able to get a First Article Proof - basically a "press proof" off of the machine printing the file.
Tell me a little more about what you are doing (how you are reproducing the image) and I can help you a little more.
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