I have listed the suggested prices for the items I did not see on your list below. This assumes that the Robe of Useful Items is too random for pricing, which is why I did not price it.
Reasoning: It's similar in function to a Giant Slayer, and you've got that priced at 7000. It might warrent being bumped up to 8000, however, because it is especially good against some of the most dangerous monsters in the game.
Mace of Terror
Reasoning: It has nearly the same effect as the Wand of fear, but in a radius. I lacks the wand's other option, so a lesser price may make sense.
Once again, thank you. This will be very helpful.