so you buy '52 Mantle from a guy who says he bought it at an estate sale. you then go on ebay and create an account. after a few actual sales, you build a nice feedback rating with 100% positive feedback.
then you post the Mantle you bought for a one day no reserve auction. you tell the story about how you got it, and you make it very clear that you are selling it as a REPRINT. the bidding reaches $381 with just over 2 hours to go. the card sells, and is shipped out.
buyer recieves a $860 mantle reprint. you cancel your ebay account and open a new one. rinse, wash, repeat. i think i'm going to pass on this one.