I think it’s best you Clarify that your looking for a “sukenari AS dammy 67hrc”
I don’t know anybody that’s got one ( or that will let it go if they did)
I think suk’s are pretty amazing knives. I regret selling my YXR probably the most of all my blades.
if you wanted to see hardness differences, you can buy different white hardnesses pretty easily. Or if you wanted to see the difference in the blue steels by the same maker, that could be done decently easily also. I guess the allure of the the 67 insanity is what is driving you. But (I would suspect) denka’s can give you a similar HT experience.