Looking for thorough information on civil versions of Rumpler C.IV, LVG C.VI and DFW C.V/Uzunov DAR U.1

[RHWinter]

Hi all,

I feel some lust to convert one or another of Wingnut Wings' kits to a post war civil airliner. I was thinking of either a Rumpler C.IV (e.g. "Rumpler Luftverkehr"), or a LVG C.VI (e.g. "Deutsche Luftreederei"), or a DFW C.V / Uzunov DAR U.1 (Bulgarian..). Can anyone here please give me some hints on books, journals, articles and scale drawings (interiors!!) etc. dealing with the conversion for civilian use of (one of) those planes? Which are the appropriate archives that might hold relevant documents?

Thanks in advance!

Richard

[RHWinter]

Thanks for the input, Sönke!