I am selling my Outfitter Apex. Beware of scammers!

Sold my boat on CL. First response was a scammer. Was offering to purchase sight unseen with payment by PayPal. I responded at the first reply, with a valid email address, and shut him down on his second response. Never heard back from them again. Third response to my ad go me the buyer. They showed up with over $7K in cash, and drove off with my boat....Overall, I'm pleased with selling on CL, I've sold several household items. Rarely deal outside my area, so I need to see and touch the money before I sell.