I absolutely love these cars but it would have to be in amazing condition for me to pay 10 grand. I was nearly compelled to buy a beat up one for 1500 bucks but I decided against it because I just didn't have space at the time. They are beautiful cars and very exotic looking by todays standards. They are very rare but not very hard to work on. There is a lot of room in the engine bay and with a good tune up and proper maintenance it could run reliably for the age. Body work can be tricky on these though because of the way the body was designed. Both motors offered on the car weren't very powerful so the cars are slow but do handle well. They also have the coolest headlights in the history of cars.
10 grand though is a lot. I would try to talk the price down if I were you and pass if he won't budge. There are a lot of great classic cars you can get out there for cheap but it's best to have some money left over for repairs.