Sounds kind of sketchy, but it doesn't sound like he's any more "out there" than half the sellers on eBay... just another reason to do all your homework and check it all out in person or to have it checked out. People go to extremes to sell things these days...
I try to be as up front as possible, so there are no questions. But that's just me... I like his "creative" spelling too. "FRONT TYRE ARS BRAND NEW BFG"