There is currently a interesting docuseries on german tv on DMAX
called "wing men".
The series is about the Meier brothers (http://www.meiermotors.com/)
who have a restoration workshop, where they are waiting and restaurating nice old planes.
The last episode btw is about the purchase of a Douglas A26 Invader.
look here
https://www.dmax.de/programme/wingme...ruder-heben-ab
(chrome browser recomended)