I'm surprised Will didn't offer you that Bang Bead cart cheaper. That's his MO, he looks at wanted threads, and magically has what you are looking for at a price that's too good to be true.
It is too good to be true, and he scams again.
Seriously, people who have been scammed by Will need to check the other threads. There's a fairly current shipping address to go by. Authorities need to be contacted. If it's a small number of scams here and there they are unlikely to respond, but if they see that he has a long history of scamming across multiple boards, they might be more apt to do something.
I wish I could do more, but as he's never scammed me (not for lack of trying) so I can't get personally involved. Put this motherfucker in jail where he belongs.