A clip from the RBA sight....
Fairy Ocarina Fairy Ocarina/Ocarina of Time 8011A64B
Ocarina of Time Bombchus 8011A64C
Bombchus Hookshot/Longshot 8011A64D
Hookshot Ice Arrow 8011A64E
Longshot Farore's Wind 8011A64F
Farore's Wind Lens of Truth 8011A651
Boomerang Magic Beans 8011A652
Lens of Truth Megaton Hammer 8011A653
Magic Beans Light Arrow 8011A654
Now according to what I've read of that, if you have Magic Beans on C-right, You'll get the Right Arrows by bottling. To get the Megaton hammer, you'd have to have the Lens of Truth. Now, you could do this through following the list up to the Fairy Ocarina(Unless I'm misunderstanding these items staying in your inventory)
Now if you have bottled for the arrows and bottled for the hammer, even without bottling for the medallions, you could bombhop into Ganon's castle and use the arrow and hammer to finish Ganon.
So at the moment, I imagine it being something of this...
Start
Kokiri Sword
Fairy Ocarina
Bottle
Bottle up for the Arrows starting with Fairy
Bottle up for Megaton
Bottle for Quiver
Bottle for ?
Hop to Ganon's
Skip his Barrier
Whack Ganon
Now that may change, but that seems like something you could do and entirely skip the medallions