I figured that this might be a helpful resource, a compilation of ripped tilesets from the other, non-FE7 GBA Fire Emblems. Ever wanted the Western Isles tileset, or FE8’s improved Plains & Castle for your hack? The idea is, anyone who rips a tileset posts it up here for everyone else. Eventually we’ll have all of the meaningful ones ripped, and tileset imports will only be a simple ctrl+c/ctrl+p and a pointer adjustment away!
If you’re not quite sure what to make of these files, give this video a quick view: