Does anyone know where to purchase the Arte Stella book? JList didn't list it and I'm wondering if websites are still selling them...

Dear Hetalia Livejournal and Fandom.
I have recently been very distressed about finding certain nations, and those are the ones that have have had a minor Role in the current Hetalia Fandom and have not yet appeared in a comic or a Cd-Drama
The ones I am talking about are for example
- Luxembourg
- Portugal
- Scotland (only recently)
I say this because they have been mentioned by Himaruya in one or several Blogs.
But they have not had a tag in that post, that way nobody can find the post where he mentioned him for the very first time.
I already had a problem with this, when a nation got a tag in a official blog, but then the Tag got removed because the nation simple didn't make a appearance yet.
For exapmle I can't remember which one it was I believe the one where he made a sketch on Luxembourg without a face. But when I want to search for him I can't click on the Luxembourg tag, I have to scroll across all the official blogs to find the specific one about Luxembourg. Same applies for the Portugal Sketch.
So I want to suggest to the moderators, that Whenever Himaruya even Mentions a nation in one of his Blog that the nation should get a Tag instantly in the Hetalia Livejournal.
I say this because this is a Fandom, and even though there isn't anything official yet we will still wright about them. This isn't a Wikia Page, and if there isn't a official appearance on them, it doesn't mean that they don't deserve a tag.
I hope that the tags will be added or else many fics that where made before the nations formal "official appearance"will go to waste for the fans of those.
Please fellow fans have a discussion on this.
It is only to improve the accessibility for us fans.
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Of course this doesn't count for OC characters only for those that Himaruya mentioned, even if only briefly.
And if the tags don't get added, then it is only fair to remove the Vietnam,Kenya,Bulgaria, Asia3, Australia, Cuprus and many more tags.
Since they only got a brief mention, sketch, and never got a official manga, anime or Cd-drama appearance.