ring of protection
ring of protection
? neck
? (Ideally these would be blood-soaked red capes but they aren't laying around that often)
darkened platemail
steel open helm
iron tusked mask
leggings of mithril mesh (from dwarves)
? feet
? hands
sleeves of mithril mesh (from dwarves)
? about (snow leapord skin can be found, but isn't common)
? waist (wide-bronze belt)
darkened bracer
darkened bracer
? weapon
razor-edged shield

Now, if you can get midnight dragon gear in any of those slots, it's probably an AC improvement, but it doesn't help armor skills, so depending on what you are doing, that might be a mixed bag.