There is another gentlemen in Arizona that sells what he calls the "Doodle Bug Bible." It is a bound volume of all known Doodle Bug manuals and technical bulletins. I have his information at home and will dig it out later tonight and forward the information to you.
Well, it took me longer to come up with a name and number of the gentlemen behind the "Doodle Bug Bible," but here it is:
c/o Silver Lady Antiques
P.O. Box 730
Tombstone, AZ 85638
(520) 457-3933 day or night
If you are ever in the area, stop in Silver Lady Antiques. If you're lucky you might catch a glimpse of Stephen's Dusenberg Boat Tail Speedster.