These equipment do exist in game. I can't speak to how often they have been sold without some research, but there are accounts which have those two equipments on them. If you are having trouble finding them on the AH, I recommend trying direct trades with players.
Please try reloging into the game when you get a chance. Our engineers have done some work on the back end which should resolve your issue. If you still are unable to log in, send me another PM and we will continue from there.