Today, I completed it. Since I last posted, I did some of the Turtle Rock dungeon before moving off to go and find the boomerang and collect some seashells for the level 2 sword. With both of them obtained, I was pretty much indestructible, easily seeing off the boss of that dungeon, then wiping the floor with the end boss in the Wind Fish’s Egg. Probably the easiest Zelda end bosses ever, due to the sword and improved armour I was packing though, no doubt.
And it was all ace. Yeah, the item swapping was a bit annoying (especially since the 3DS’s Start and Select buttons aren’t the best), but it’s still classic Zelda, and I don’t even feel it’s aged.