71 Duster 340 Inviolet V-24 How Rare??

How rare is this car? I'm fixing to start a resto on a 71 Duster 340 V24 call out car. Plum Crazy/Inviolet, shark tooth grille, 340- 4 spd, bucket seat, deluxe interior, black vinyl top, chrome rallye mirrors, fender turn signal indicators, rally dash with tach, deluxe pedal trim, black side and butt stripes. I've heard not many V24 cars were made.