ISO Birkenstock Mantova Sz 40

I’m desperately looking for a pair of Birkenstock Mantova shoes either new or gently used. I’m looking for a size 40/women’s 9-9.5 and preferably black but I will take what I can get. I’ve looked on EBay already but most are knock offs. Please let me know if you find any or have any that are for sale 😊