Bringing Ricardo to your private party sounds to me, pretty much like Mission Impossible 4.
I mean, Mutek tried for 3 times to bring him to Montreal. Each time, he was paid what he asked, had his ticket paid and Mutek's crew are close friends to him. Those 3 times FAILED (for reasons that were never really said).
Make your own conclusion, Ric is an amazing artist but I think it's a damn task to move him elsewhere...