Nice work on a complex model! If I can share a tip with you regarding the PE work. One of my essential tools is a narrow jaw, non-serrated locking hemostat. You can find these at your local hobby shop (Squadron 10502 is one example).
It's useful in the following way:
Once I cut the PE part from its runner, I clamp the part in the hemostat jaws parallel with the edge that has the nub to be filed off. Then I run my file along the edge and the nub comes off quickly and cleanly (never file perpendicular b/c you'd bend the part by mistake).
Once the nub is cleaned up, I adjust the PE part in the jaws so that any part that needs to be bent is right at the edge. I'll then bend the part using a small screwdriver, my exacto or tweezers-- whatever is called for. I can bend and manipulate the part again quickly for subsequent bends, if needed.
I can fly through many small PE parts now -- also know that you don't have to use all the PE. Often, its benefit does not outweigh the work nor is it even an improvement sometimes. Plan judiciously.
And I can't stress good vision magnification & illumination -- it just enhances your dexterity with small & fine & fragile parts. Good luck