Jeep CJ7 Dash Box

I have a 1981 Jeep CJ7 that a PO put a radio into. In order to do that he cut a hole in the original dash so that a modern radio would fit. I took it out when I got it because the radio didn't work anyway. That left me with a nice square hole in my dashboard though. They sell aftermarket radio hole covers for CJ7's but since my dash was cut none of those would fit. I decided that rather than have a hole in my dash I would design and print a box to fit into the hole so I can at least get a twofer by covering the hole and having somewhere to stash stuff in the dash.

The hole is slightly too large for me to print the box as one piece on my printer so I decided to design and print it as two halves that I could then glue together before I install them. There are two files here, one has tabs on it and the other does not to give the box some additional support and give me somewhere to glue it that won;t make a mess inside the box.

UPDATE: I adjusted the side without tabs so that