It does appear to be bent but as you state it could be an illusion. Before I drove an hour, I'd ask for a detail picture of the front front end, including the upper fork and request that the the owner makes sure the front wheel is aligned with the frame. Something along the lines of the attached. That will allow you to see if there is any damage behind the lugs and increase you confidence in fork condition. If the owner really wants to sell the bicycle and isn't aware of an issue, he'll take the five minutes to do this. If he's aware of an issue, he'll probably refuse or ignore your request.