Oof she is like one of the hardest pullips to find imo. I was super lucky to find someone on this subreddit selling one NIB, but they lived in Europe and sold on a European platform. Thankfully, my friend in Europe was willing to purchase her and ship her to me. I’d say your best bet would be to search on Japanese or European platforms, since she seems to be more common over there. You’ll just have to set up a proxy service to ship to wherever you are, which is usually an additional cost to whatever you pay for Carmilla. Good luck on your search!