71 Demon go wing trunk lid question

Not to get too far off the topic, after looking at quite a few 71 Demons as I'm in the market, I have not seen too many coded for J54 sport hood option or the J81 rear wing option. In fact, as many as I've called on and gotten pictures/fender tag info I have only seen two cars actually coded for J54 and one for the J81. Are these options somewhat rare in a 71 Demon?