New Guy. I need help sourcing a d16y8 block

How's it going? I was in the Honda scene a long long time ago. My nephew just purchased a 98 civic ex and it has a spun bearing. I'm trying to find a d16y8 block or a d16z6 or even a d16a6 if I have to. I just need the crankshaft. if anyone has one and is willing to sell or knows where I can get one fast let me know......even if it's in mex. I'm pretty good at taking civics apart and am willing to help anyone out.. just hit me up.
thanks
frank