[Blissey]

I'm inclined to agree that it's not necessary for actual magical healers to need the items, assuming they have the requisite healing spell(s) invested in, within a slot, and they have the necessary mental (and physical) stamina. I think all of that would be a fair trade-off, and you wouldn't even necessary need to heal the entire wound/illness to perfection (unless you have more than enough physical and/or mental stamina).