Seen the advert, it does sound very cheap however well known lines are mentioned in the advert so they could be mismarked pups. And theres nothing wrong with having a mismarked pup as a pet

If you do decide to go ahead (I dont really recommend that people buy pups from people through that site)
Take someone with you if possible who knows all about the breed who can go through the pedigree with a fine tooth comb, just to make you aware there are black Olde Tymes too, so it could possibly be someone with an Olde Tyme litter that has used a dog from the lines mentioned