Hi Eric,
I'm not of great help in identifying these parts, but a typical leftover of a 109 are some unimpressive longerons from the rear fuselage. I can't attach images here, but a look here
http://109lair.hobbyvista.com/index1024.htm in the "walkaround" area of G-6 163306 would be of help...
All the best
Heuser