I contacted DY directly some years ago, after a relay call through Bell (see how long ago?)
He was extremely helpful and entertaining, we talked canoe design for a couple of hours. He custom altered plans for his DY Special for me, and mailed the hand drawn sections to me.
It wouldn't be my place to share the contact info, but I recently cleaned up my workspace and design desk and tossed away his number...it was a land line anyway.
I'm sure you could relay a message to his through one of his many cohorts, or meet him at a paddlefest or two. What's the worst that could happen, he might say no?