I have both books. They are both valuable though the mrozowsky book has modern pics of existing original craft. Off the top of my head I want to say the Polish one was built post war and the other was a us trot Hungarian and if memory serves me correctly it is a prototype .that said I would imagine details like the control panels and a few other things may be slightly different then an early war German birdie so I guess try to go off both combined
Thanks for the info, Scott. I know these had a long life span and were built from pre-war through to well after the war. There are a lot of variations in the cockpit details. I'll probably stick closely enough to one of the WnW versions, adding detail where necessary to enhance things, but not stray too far from the basic layout of the IP and interior.
I really like version C in the kit because of the dark wood and color of the linen. But after looking at the books, I think it is possible to do a different version with similar coloring if I make some custom decals. This might be a good idea to make my model a bit more unique since version C seems to be the most popular choice. I don't want to make exactly the same thing as everyone else, if I can help it.

George