Thank you for taking the time to inspect the bag @Prada Psycho and @Bratty1919. I am really glad that there is this kind of resource out here. Thank you!
I'd be happy to attach more photos. I hope these are sufficient.
Seller is adamant these are real since "bought in a Japan pawnshop/auction" and would guarantee money back if proven fake, so that's a relief.
I'm leaning, almost to the point of toppling over, towards fake.