Just enter the seed, don't change anything other than the difficulty (this means you do not have to change any settings, the only setting you can alter without changing the seed is the difficulty).

Sword Shrine: 1.1.1.10204907
(Go to the left until you are in between the end of the snow biome and the 'hill' on your left)


Pyramid Seed: 1.4.1.1948524774
(Go right until you are above my position, then dig down to find the pyramid with a Sandstorm in a Bottle)

Pyramid, Water Walking Boots, 2 Enchanted Swords: 1.4.1.1161815020
(Go right until you are above my position, dig down and left to find a pyramid with the pharaoh outfit)
(Go right until you are above my position, then dig straight down to the shrine)
(Go into the pyramid from before and once you have reached the bottom dig to your immediate right until you dig into a small cave, keep heading right afterwards until you see the enchanted sword, it will be submerged)
(From the 2nd enchanted sword at the bottom of the pyramid, dig down and a little right until you find the glowing mushroom biome where you should find 2 water chests, the one on the left has the Water Walking Boots.
I am also accepting seed requests for anything, whether a specific item found in a chest or a structure.