Well, pretty tough for me to buy a used vehicle without seeing it first. So, scammer or legitimate, the easy way to put your fears to rest, is "I can meet you Thursday evening at the Esso along Highway 53". Then they don't know where you live, and they can only steal the vehicle.
My wife does, but I don't do the house thing anymore. You can meet me at my work, 8:00 to 5:00, Monday to Friday, to view or pickup the item. Someone is always there, not coming to my house in the evening, and I don't have to worry about maybe/maybe not showing up. I asked the boss, he don't mind, and quite a few guys here do it.