Ebay does work. Most of the time. If you're getting Japanese, which I do, it would be an easy job. Just find 'from Japan' and go to sellar ratings to check.
For Englsh version, I'd go for UK because US has outrageous shipping.
For short, avoid China and HK. It would be an easy process from there. If it is bootleg, just get it refunded or report. Works for everything on ebay.
Mirror of fate is quite easy to get. I just walk into any retail and see it everywhere in Australia. Don't know in there tho.