Looking at the pics, the tail wire is worse for wear, the end pin looks like it has tape or something around it, and the bridge is quite a way out of place on the front. You might want to ask for more pics showing if the sound post is in place, fingerboard close ups, headstock to see if there were repairs etc...
He does say collection only and for cash so if you go and it's rubbish you can walk away. Travelling a distance for the right DB is not uncommon. Looking at this one, you'll ask yourself if it's worth the journey.