Thanks. Finding a budget phone with more storage isn't easy.802.11 a/b/g/n, no AC.
As for adotptable storage, first that's designed for 8GB or smaller phones. Second, it's a bad idea - SD cards don't balance the way eMMC storage does, so a single spot can get work out quickly, rendering the card useless. If she needs more "internal" storage, get a phone with more internal storage. (She can always carry pictures, music, etc., on external cards, and use an adapter, even if the phone has no SD card slot.)