No place for this so here it goes, looking for value of 73 duster

have a friend who has an all original numbers matching 73 340 4 speed bench seat factory air car, steel blue that had stripes, gone now. Car is two owner, he bought it with 8000 miles on it.
Everything is there but not all working but very straight. Needs paint A/C repaired and a few gauges fixed but runs strong, 14" rally wheels and and extra set of 15s.
Any idea what it could be worth as it sits now. Will try to get some pics latter.