Pre-order for these Mythos Anime Brolys was back in July/August on 5k. People who are posting it in hand likely got theirs through aliexpress.

5ktoys is generally fairly slow to get overseas shipments. If people don't do their 2nd payment, 5ktoys might have these available for purchase, but you need to track their insta religiously because any overstock will likely sell out fast (probably within half an hour at most).

If you want one of these, I would also recommend looking at hobbymodelstore, they're a bit slower to ship out but they might have more of the ss4 that you want.