Check out "Wings of Peace" - as they say on the site's splash page:
Welcome to the Wings of Peace website, dedicated to the modeling and historical research of civil aircraft from the "Between the Wars" period.
http://www.wingsofpeace.net/Many of the aircraft are scratch-built or converted from kits. Also on their video collection page, a sample of Ernst Udet's trick flying.
Cheers,
PS - Congratulations to the people of the United States of America - the world is watching with hope and and expectation.