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Well, getting a specific safari is pretty rare to begin with, and coupled with the fact that Ditto safari's are in such high demand, people who create them are probably pretty loaded up on Friends anyway. So yeah, they aren't that easy to get ahold of.
Well... I figured that, but I was kind of wondering WHAT you were planning on breeding. Oh, and if you happen to get any spare offspring that have a few perfect IVs, I'll gladly take some off your hands.
I managed to find one though. : )