Dear sgeorges4,
Following this link, you will have 12 photos of the WNF "Diana Werk" Bf 109 G-10 production at Tischnau - Tisnov from December 1944 up to April 1945:
http://www.vrtulnik.cz/ww2/protektorat-tisnov.htm
As for a comprehensive wrap-up of WNF produced Bf 109 G-10/U4, I can only suggest you get hold of a copy from the excellent Janda and Poruba JaPo 2004 publication on the subject.
Cheers
Marc
Cheers
Marc