Hallo Rolf,
That's project of yours about NAGr 13 seems quite interesting...Surely some of the members can be of help onto it.
I do remember a propaganda picture taken in France of their Fw 190 A-4 in colour (you must know which is)...but never saw a similar shot of their Bf 109 G-8. (see here:
http://silverhawkauthor.com/german-w...e_version=true)
It is not known if they painted theirs like NAGr 12 for instance. I also only saw one single Bf 109 G-8 photograph on a detailed Bf 109 book (not sure, by heart and memory now, if Prien's work - I guess)
Cutting Edge CED48068 do deal with LW Reconaissance planes on 1/48 Scale...
Keep us informed about this work, all right?
Adriano