Does anyone know where I can get a Japanese Diamond .sav(!) savefile? I need it for the pal park so it needs to have at least the national dex. The copy I bought has no savefile.

I found a .duc that I can read with PKHeX but I can't seem to be able to convert it at all, not with Save Editor, Shunyweb or the Offline Save Converter, they all seem to produce a corrupt .sav that PkHeX can't read.