What's wrong with just unscrewing the plates, give him the car, keys and title when he comes with the CASH. He can take the car home and register it there with the bill of sale and title transfer.

You don't need plates or anything like that. Last few times I bought a car, that was how it was.

Make sure he shows you his DL and signs the Bill of Sale along with something that explicitly says NO WARRANTIES EXPRESSED OR IMPLIED. SOLD AS IS

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01 Ford Excursion Powerstroke
99 E300 Turbodiesel
91 Vette with 383 motor
05 Polaris Sportsman 800 EFI
06 Polaris Sportsman 500 EFI
03 SeaDoo GTX SC Red
03 SeaDoo GTX SC Yellow
04 Tailgator 21 ft Toy Hauler
11 Harley Davidson 883 SuperLow