OK, so those 2 are correct and are Items in the save editor, not Variables, since they are Items in your Inventory.Dude those are correct you have two variables one is item and other are floating ones or maybe i cant call item variables sorry?
Adding them by hand doesn't work as it should, unfortunately the game expects the next scene to run, so when you want to enter Amy's room, it will say that you need to return the original key (in a spectacular Engrish), but of course, you can't do that, there's no bag/Amy in the basement.
Therefore, even if you do have Amy's key, it's unusable.
Now, it would be interesting to know what the Variable number is for this quest and how the game determines that you returned the key to Amy.