I'm specifically looking for the games King's Field Additional I & II. I already have the normal Japan releases, but for my variant collection's sake I also need the Asia releases of these two games. Easy way to spot the difference is that the Japan releases have the CERO logo in the bottom left of the front cover, while the Asia releases don't.

Play-Asia.com has got them listed, but they're sold out, and has been since forever.

Has anyone got any idea where I can get these?