Ocarina of time save file please...

Technically you can get to the Gerudo Valley at any point in the game after completing the Great Deku Tree, and you can get to the Gerudo Fortress as soon as you acquire Epona (which can be before you do any of the adult dungeons). I presume you want one from after the Shadow Temple is completed? Do you want Link to have already made it to the Desert Colossus/learned the Requiem of Spirit?