Imagine seeing this lathe at an auction. You can look, but not try it. Wind the screws in and out, rotate the spindle, look at the motor. But basically you will not see any hidden faults. Now consider what this lathe is like compared to a dog in an auction sale room.
I was trying to suggest things to do to establish its condition, no one has helped by saying that you can indeed look at the motor and drive, does the top of the headstock open to look at the spindle? I don't know. The things you really need to know are the state of the bed, damaged or cracked, the spindle, does it rotate easily, the carriage, does it move smoothy.
Don't forget that if the seller is an arts graduate then their knowledge of lathes will be negative, don't expect to have your questions understood, let alone answered. Go to look with a pile of cash in your pocket and a means to bring it home, found that riffling a wodge of notes does tend to change people's minds. On the other hand I have also found that screwing the price down also is foolish, you get an irritated seller. But your primary job is to establish a value to YOU, not others on the forum who last bought a machine years ago. I buy stuff on sales, usually auctions, and NOT ebay, on a regular basis. I have found that the good and the bad do even out, but that also requires you to buy on a regular basis. It is an easy price improvement to simply clean the thing. Also have other chucks so you can swap them around etc etc.
A three hour drive is just the investment you have to make to buy a machine, or anything in fact, enjoy it!