I'm still curious about using the 2nd bait in level 4 (that I posted above...turns out the blue ring is in level 5). I never found the wand, so I'm guessing that's where it is?
I also never found the lion key, which made level 9 a bit interesting. Before entering the level I had 6 extra keys from excess rupees (throughout the quest, whenever I got to 255 rupees I would buy a key just so that the rupees wouldn't go to waste) and possibly an extra key from level 6 (not sure about that though). I was able to find the map, boss key, and the silver arrow through trial and error and just cruised to the end without the lion key, leaving a lot of locked doors unopened. I'm pretty sure that's not the intended way to beat the level, but knowing where you hid the silver arrow in the fourth quest, I didn't want to comb through the entire game just to get the lion key in case it wasn't in level 9; it was just easier to grind for the 120 rupees to buy an extra key.
I was surprised that Ganon only required 8 sword hits (I think it was 12 or 16 in the 4th quest?...not a plus or minus either way; that might be one of those minor details that the community/judges decide to edit onto whatever the winning quest is).