Unrelated to KC, the German newspaper featured an article online about ME 262 production towards the end of the war. Final assembly was apparently done in "forest sites". Enjoy the photos.
http://einestages.spiegel.de/external/ShowTopicAlbumBackground/a18081/l1/l0/F.html#featuredEntry
http://einestages.spiegel.de/external/ShowTopicAlbumBackground/a18081/l1/l0/F.html#featuredEntry