I do not want to speak for anyone, but i believe the post was for a retro styled helmet, not a retro styled paint job, am I correct?
My buddies over at Biltwell are coming out with a retro full face helmet as well. Not sure it will be dot and may not even come with a visor like the early full face styles, but non the less they may be freaking real cool like the 3/4 open face style that they had in the early 70's.