Whats the value {ballpark}

How much would a 67 dart GT be worth. It is in a #7 condition approximatley {10 being the best} all original everything.
The guy is asking 7 big ones. (7000). Its 273 auto, 8 3/4 no air power drum brakes and painted red. Lousy repaint over original red.
I think hes asking too much but I dont know.