Hey basically I just wanted to help you out. Since you already have the fire stone, we don't have to trade, I don't absolutely need the Zorua right now. Unless of course, you want more than one fire stone, but if you're gonna clone them, more power to you.
I see you're offline. I did get one Fire Stone, but I will still trade for another for that Zorua. If you end up not able to, that's fine; I'll eventually clone a Fire Stone multiple times in any case.
I know the original female Zorua I bred (which my male breeds with) was bred from a flawless Japanese Ditto. Since three from each parent get passed down, there is therefore a chance that at least one of the IVs passed from the female Zoroark (which came from Ditto and my male Zoroark) is perfect. The possibility of at least one perfect IV is 19 times out of 20, of at least two is half the time (10 out of 20), and finally all three perfect IVs going down is 1 out of 20 (which is the same for no perfect IVs). Good odds, I think.