Crack the box open for your helm and great sword.
The game will tell you that you made some changes- save them. You can also move up and down with e and c, respectively. Save your game, turn on the editor through the settings menu, and start the game. Keep going until you can see a pile of hay on your right. When you get there, take the first left head past the armorer. The easiest way to obtain the set is to use the 'Find Item' cheatmenu cheat, or follow the instructions below. When you get the corner of the house make another right.
Go up and open it for the short sword and armor. When you get there, take the first left and go past the armorer.
