In other words, no, there isn't any copyright-infringing archive of convincing spoiler images sitting out there just a peeled-off foil land and a high-quality inkjet away from a pile of convincing counterfeits. Or if there is, you can bet nobody is going to link it on a public forum.
Woe to him who peels his foil lands when there are foil Chimney Imps to be had. Also, it wasn't strictly scans of cards. Getting high-res scans of cards is trivial; you just do it yourself, or ask someone with the cards to do it. It was proxy cards made with a perfect (and possibly genuine) Photoshop template that brought the legal trouble.
Anyway, everyone knows that the real proxy hotness is drawing your own, like
vroman.