Is this '71 Dodge Demon for real???

My ad does state i have no build sheet or fender tag ans states it would be very hard to prove its a factory sunroof AND STATES KEEP THIS IN MIND.I since pulled 1 seat out and only found a black tag with some codes, so if anyone can help on the codes? 3520428-k
61052 1820
301-000-1aa

i also was only asking the board members, what if not the ad.If you guys say it came with no roof then it came wiith no roof, but to say 71 dodges did not come with this style roof is wrong, again the ad has a 71 challenger with this roof from the factory and a fender tag with the code?