It is a matter of time. Cooperation? With Mr Creek or Mr Smith?
I know only two people who could write a comprehensive book on the late Junkers aircraft (86/87/88/188 usw.). Both live within the borders of Germany.
One should have the necessary background knowledge to German aviation history. One should be able to write German names and places correctly. I miss both in the most books of Anglo-American authors.
Regards
Peter