David,
Looks really good. My next build is going to be a Walt's Trooper Factory Shadow Trooper.
In regards to your EIB application, if I may offer 1 comments. Your shims between your ab plate and kidney plate may need to be fixed a little bit. There is a separation between the shim and kidney plate that should not be there. I know, because I just had to modify mine in order to become EIB.
I would recommend using an ABS plate to connect the side shim and the kidney plate from the inside and then glue it so it is flush from the outside. I see that you might have it attached to fabric or velcro, I cannot tell.
Again, this is only an observation. If you need for me to clarify more, let me know. I sometimes am not very clear when typing.
Keep up the great work and good luck on your application.