Actually the Poser Style Immortals outfit was modeled by thip  http://www.renderosity.com/homepage.php?userid=5965

I'm not sure if he actually holds the copyright or if it was Poser Style so I don't know if anyone can actually sell it to you now.   John Malis had made texture and prop expansions for it but does not own any rights to the model itself so I doubt he can help you.   I'd begin by messaging thip here at Rosity and see what he has to say.