Servus, Matthias,
"Wertheim" can be defined, I think. You´re sure Hagelstadt was out of Bf109 production in April 1945? Then we can sort it out. But it would fit into the picture. The fuselages are stored on a "Holzrückeweg" which obviously has not been used for lumbering purposes for a couple of years. This implies a rather large piece of forest which would exclude Michelshofen with its tiny piece of forest. In KZ Flossenbürg there exist no Holzrückewege for obvious reasons and Altenhammer is hidden deep in the valley with no direct connection to a plain forest area.
Weissenohe might fit and Mappach looks good, too.
Here are the Google coordinates for:
the two KZ Flossenbürg production sites
49.73813,12.353944
49.73811,12.348171
Altenhammer
49.730558,12.325287
Heringnohe
49.62906,11.783609 - I have marked the traces of the airfield railway. Zooming is deliberately blocked by the US because of the military facilities. If you´re wanting a better resolution and excellent maps, go here and look for "Sorghof" or "Heringnohe":
http://www.geodaten.bayern.de/BayernViewer/index.cgi
Flossenbürg and Altenhammer production did not take place in the forests but almost in the open. Whereas Altenhammer production hall was well hidden in a deep and narrow valley you can figure out why the Nazis dared to produce openly within the KZ area...
Concerning Mappach it would be interesting to know whether there was some kind of transport railway to the station such as the one between "Stauffen" and Obertraubling.
The distance between Michelsdorf and Cham railway station is huge IMO. Most interesting is the possibility that the Messerschmitts might have been tugged across the Regen bridge which later was filming site for Bernhard Wickis "Die Brücke"...
I´m looking forward to your pics. Btw, did you have contact with Peter Schmoll? He seems to be well-informed about Mtt production in the direct surroundings of Regensburg, but stays rather calm concerning the "outer rim" of the Mtt web.
Regards
Roland