Correct Hood Pin Setup for 1970 T/A

What is the correct hood pin setup for a 1970 T/A and where is the best place to get an accurate reproduction? Are the lanyards supposed to be 18" or 23"?

I just needed the same info but for a 71 shaker hood. Challengers and Cudas use the same pin but the lanyards are 18" for Challengers and 23" for Cudas. The escutcheons are the same also but on a fiberglass hood they use rivets instead of screws. Yearone seems to have good ones.