The plans for the drying rack can be found under the storage section of the guidebook. Once you have found the plans for it, select it with your mouse and you will see a wireframe of the drying rack appear in front of you. Choose where you want to place the rack and press the left...
the castle’s design also has a lake around it with a bridge that connects the castle to the mainland. Thanks to the block choices and detailedtutorialby Youtuber MMH, the final result