Plenty of space for a Pi or two inside this case. Looks promising so far. Only had the Zero loose, so that's what I had to test fit, but a stripped down Pi 2 or 3 should fit without much issue.
Now I just need to get the proper connectors for the keyboard and trackpad, get a power circuit wired in between the battery and the DC jack, figure out the best layout, and I'm nearly off to the races.