1971 demon 340 #'s matching

First off, Im listing this car for my dad..

1971 Demon 340 auto #'s matching. F3 green with black bucket interior. original options consist of:

ralley dash
console
rear gull wing
hood scoops
hood pins
manual steering
manual brakes
3.91 sure grip
exhaust tips
am radio
rally wheels

Paint show very nice. interior could use a little TLC (headliner, dash bezel) to be perfect. motor is warmed up but Im not sure what the specs are (I do have a sheet with them somewhere) the obvious ones are headman headers, edelbrock single plane intake, electronic ignition, lumpier cam of some sort and an edelbrock carb. car runs very strong! looking to get $18,500. please no low ball offers. thanks!
-kevn