I understand how you're feeling, but this forum is completely against fake handbags. Lots of people carry them, but it's illegal to sell them and the money spent on them is supporting crime, terrorism, all sorts of negative things.
You can try posting on the Balenciaga board to ask for trustworthy eBay sellers of Balenciagas. Maybe you can find an authentic pre-owned one in good condition.
Good luck getting an authentic bag--that's the way to go.
