As far as I know, if you buy a physical copy of either the LP or the CD, you’ll get a diorama. I didn’t see any “limited edition” mentions anywhere. The vinyl is a pretty thick package because it’s 180g vinyl with a “double gatefold” approach. If I’m not mistaken, the sticker on the wrapping was yellow and black and it verified that it was the diorama.

It’s amazing, though! If you don’t see the diorama in stores, though, it’s for sale on the site. I got mine the day after it shipped, too.