I totally love this thread, so many amazing builds!
Just wanted to say, as the person who designed the motherboard that seems to be such a pain in the ass, that the hole pattern designed was laid out in such a way that it would accomodate changes made to the parts and design of the pack throughout production.
The layout of the very first prototype motherboard sent to early production meetings and the one on the final packs you see in the movies are virtually identical. But throughout the build designs changed and its just not feasible, due to both time and money, to re-laser 2 dozen motherboards to move a hole pattern a quarter of an inch.
Also, just a bullet point list of some things that seemed up in the air:
There are only 2 3D printed parts on the entire pack and a lot more traditional prop fabricating methods were used than it may seem.
The straps and padding are 100% in house made.
The warning label on the gun is laser engraved, not printed (and I wrote it myself, hope you liked it)
The inside of the faraday cage looks like copper wire tediously wrapped around rings, and it is.
But it seems like you folks have a damn near perfect parts list as it is, so good luck, happy building, and I look forward to seeing your packs at cons