I've been looking across the standard manga-download (specifically download--and I don't care right now whether it's by volume or by chapter) sites, but have had no luck.

I'm looking for these 2 mangas:
"Go West!" by Yu Yagami (who wrote "Dokkoida?!" and "Those Who Hunt Elves")
and
"Polyphonica: Cardinal Crimson" (the companion manga to the 12-episode anime)

Can anyone help?