Vash was probably amenable enough to arange the coat himself XD. I'm not even sure I can accurately decipher the name of the artist, since it's only given in kanji, and I can't tell you how badly I suck at names. Daiden/Naiden(?) Bikei, or seomthing. I don't immediately recognise the art style.

Yeah, I don't mind where they haven't drawn every scar on every panel, because that's a lot of time, effort and detail. It's when he's virtually pristine that it bugs.