1981 Volvo 240 Stick shift. Power windows and door locks. Cloth interior. Moon roof. Everything works but the moon roof doesn't open right now, needs grease. It drives well and makes no funny noises. 270,000 miles on the clock. The used car lot wanted $2,900 but I talked them down to $1,800. My friends say it's still too high a price. What do you guys think?