Finally bought the box set, now I have all of the singles, 3-1 omnibuses, the current Fullmetal editions, and all of the manga in Japanese. I feel complete! : r/FullmetalAlchemist
Fullmetal Alchemist Complete Box Set (Fullmetal Alchemist Boxset)
Fullmetal Alchemist Complete Box Set by Hiromu Arakawa | Goodreads
Fullmetal Alchemist Complete Manga Box Set - ForbiddenPlanet International