Car Remembered Selling How Can You Preciously Secure Yourself

Hello together, I know this is an old, sorry topic, but my problem is that I only have one interested party who is willing to pay me a fair price. However, he also wants to take the car registered on his 350km drive. I understand that. He is also willing to show his ID card and make all kinds of contractual agreements. But then you read on the internet all these horror stories (mostly older) that despite contractual agreements something What’s that like? Is there a way to secure 99,9 %, or should I just let it go? I had posted classified ads at Ebay and the dealer wrote me https://www.autohandel-noah.de/vehicle rating/. I think because he wants to drive to me I have the advantage if he wants to fold in front of the place nocvh that I then stur stelen kan because very not want to drive back empty.