recasting is about the cardinal sin on this forum... it's essentially considered stealing the original artist's work.
knowingly buying a recast is bad. saying that your friend is the one that that did the recasting is even worse. when someone in good faith buys a bucket on ebay thinking it's real, you can't really fault them for it.
it would be like going into a band's forum and talking about how your friend copied a bunch of cds for you. if the artist or the artist's friends saw that, they would likely not have a very high opinion of you.