I haven't had the best luck with Buyma. For the aogaeru flamenco I found some options that seemed to be a good price - like in my currency (Hong Kong dollars) it was originally just under HK$18k and one seller had it for just over HK$19k. But they told me it was sold out. Then next one up (still under HK$20k) said they still had some stock. However, they directed me to a different Japanese listing to buy and that said ¥334,800 (HK$22.7k). Then when I followed the pop up directing me to the English site the price was now over HK$25k. For a mark up of US$940/€840, I might as well buy the one some Hong Kong scalper is selling on Vestiaire (grrr). The other person I contacted said they could no longer get it in Europe (?) but they could source it in Japan for HK$26k.
That's all to say that, in my experience, prices on Buyma haven't been as good as they originally seemed. The coin cardholder looks like a good deal though!
Last time I was at the pop up store the SA wasn't as good as the one I'd spoken to before. She didn't seem to get what I was asking and just kept saying the bag was sold out in Hong Kong. The other SA had a printed list of stock that was coming and a waitlist on her phone for items people had requested. Maybe she'll still come through ...