That being said, I like the build idea. A lot actually, seems quite a bit overpowered, but could be tweaked through play trials.
In regards to all the concern with "removing items" what i mean by that is keeping the artwork but renaming them to fit their new role as an item. Blizzard does this all the time in their patch notes, I'm unsure as to why so many were confused by this phrasing but oh well.
Yes, I get what you intend, but you are talking about items that already serve a function for other classes, so removing that function from the class would not be wise. So mainly referring to Corruption on my end.
Not sure if there is a shoulder in the game without a function at all. I think they could rework the "items do not receive durability reduction" shoulder without any true repercussions.