I think I might have seen it on eBay.

Wicked City should exist on vinyl/record/lp, but as an a CD version of the OST would be someone's rip of a vinyl that they burnt to CD... and therefore you would be being scammed. So, as long as it's vinyl and such... it should be legit.

I could have sworn I saw it on eBay. Now it's gone.

maybe because was already sold :P
try other places

Is it's not on eBay and it's not on yahoo Japan auctions where else should I try ?

What are some other sites I should look for it on ?

O.S.T.????? ?????? ???? ???????????????????????????????- ???????aucfan.com? (http://aucview.aucfan.com/yahoo/r82919526/)

You lack skills dude :p

that is the only I find at the moment

Thanks. I will eventually buy that fir sure. If you can help mr find it other places as well that would rock.
It's always good to have back up plans.