Raspberry Pi case

So I had a request from my brother for a raspberry pi case that would fit the raspberry pi with an XBee hat stacked on top. After searching thingiverse, I did not find anything that fit the bill. The next best thing was to throw together a design. This case is pretty basic with plain square corners, but it should do the job. I did not have the pi and hat to take measurements from, so some of this was just guessing. Feel free to modify it as needed.