I owned and sold a 70 Sport Fury GT Brougham that was exactly the same exterior colors as this car for 18.5K four years ago. If this car is in the same or similar conditon $10K is very reasonable for the car.
I completely don't understand the the "group think", and the "follow the herd" mentality of most of the members on this chat room, in that most of the cars for sale are ALWAYS undervalued by the members here, but when they/you want to sell your car; then you want full retail.
You guys are great at shooting your selves in the feet, over and over again, by your valuations that the cars you love are't worth much.
The car in question IMHO is fairly priced.
Best,
FP