The Networks Insert
I liked the look of the original insert, but on printing it realised a few issues.
It did need scaling down to 98% to fit in the box, so this is what I have done with all of the files that look the same as the original.
To make the boards fit in as shown to be vertical storage safe, I had to add a piece of cardboard in underneath them all. If I had foreseen this before printing then I would have measured and increased the height of the trays accordingly, but I had already printed them sadly by that stage. So note that the design as listed is not vertical safe, but is very easy to make so.
In my new arrangement, the scoring markers cannot stand up straight, so I have laid them in the tray with the player markers. The version I printed that you see in the photos was the original which had the upright holder for them, but since this is no longer usable, my remix has removed this and widened the tray slightly.
I also didn't see the need for the spare card holder with the starter cards, and since this wouldn't fit in the original orientation for how I wanted to store the boards, I have simplified this to a single shorter holder the same height as the token tray.
Based on the original model comments, this should work for sleeved cards.
Print two of the Single Card Holder Normal, and one of everything else.
My print in the photos is hashed as I print without tops/bottoms/walls to save on filament.