There is a way to add nearly anything you want to anything that uses a eqp file.
Add a placement node on the part then create the stuff to be placed.
For the side lettering? I have an example nearly ready to send to you all.
Took me 15 minutes to do the 3D work and that was really slow cause I went outside to stand and have a smoke break.
So yes.
I was outstanding!
Using an Alpha channel the only thing that will show in game is the lettering or whatever we want to show.
Now this will need to be tested to see what happens when you hit that area and damages appear. Does it show the damage or does it over lay it?