If one does pop up on eBay I hope to notice it sooner than you. 
Last card I still need to complete my National Index collection including all forms available on TCG cards, so I’ve been looking for one for a while now as well.
My two Russian contacts from a year ago both doesn’t respond anymore unfortunately… 
If I find two copies somehow I’ll let you know (and please do the same for me 
).
Too bad French only has the default Pink one; German and Korean are the same Yellow; and Spanish and Italian are the same Blue. Would be cool if three of those languages had any of the other Vivillon patterns. Then again, it’s already pretty cool and unique that they gave the different languages different patterns. 
Greetz,
Quuador