for now i have 3.6M PP (not using my seeds anymore, just AP and PP) and so far found 2 copies of the weapon and 3 copies of dully chan :O
btw, according to what i see in japanese wiki it'll be a good idea to keep the exra SSR eidolon as we'll be able to sell them for "phantom beast orb" and exchange for stuff like rings, earring, event eidolon, kaiser dragoons and more.