YW, we love spending other people's money....and we don't feel bad about it either.
Not the Moritaka AS if you're unsure about carbon....pretty reactive cladding.
I would probably say the same thing about the Shimo....but I've not tested it's cladding for how reactive it is. However, most carbon damascus cladding are fairly reactive at minimum.
Based on that "qualification" of yours, I'd say the Takayuki Damascus of those three.
However, in that price range, I'd take the Fujiwara Nashiji over the other's:http://www.chefknivestogo.com/fujiwara4.html
It's stainless clad carbon and the blades are amazing. Not that the others aren't great blades too....but in my humble opinion, these are just that much better.