RE: Scale Birddog
I don't have a set of 3-view drawings, per se. I have several hundred photos at differing angles plus many diagrams and specific measurements, all in Minard Thompson's wonderful source, "The Lovable One-Niner". I also have about a hundred photos and close-up detail shots of two local 'Dogs that have undergone fairly recent restoration. I use proportional calipers to take measurements from the photos and translate to the plans to get the details and scale I need.
I've been in communication with the owner of one of these planes, as soon as we can get a time mutually convenient, I'm going out to take more pictures and detailed measurements, from the prop hub to the rudder light.