wow, I'm not going to read this whole thread... so if I'm repeating anyone, just ignore.
go with real ZKW's... they won't melt if you put xenon's in there, or HID's. Stock US lights will, (it's happened to me... still have my melted headlight housing too.), and most knockoff brands will too. If you're going to do it---do it right and invest your money wisely.