After sitting on the fabric and hardware for almost a year I finally finished my bag! Just in time for Halloween and the Vol 2 teaser. This was the first substantial thing I've sowed so there was a huge amount of learning involved (and a lot of complaining by my Singer heavy duty). Thanks to everyone who posted on this thread before I found it and especially thanks to @Soulinertiafor his detailed build posts, hardware, and fabric!
The newest version of my bag. This is what it looks like new. I weathered my own that I'm keeping, but it's not very visible in the photos. A light sandpaper right on the fabric/printing did a great job though of making it more movie accurate.
SoulInertia has a kit he has sold at times, it might come with instructions. You could ask if he still has the kits, I'm not sure. The ones I sell are all made by professionals so I don't know exactly how they are sewn, but if there are any detail pictures you want to see how it goes together, I'll take some for you.