You can download from tinkercad ...
https://tinkercad.com/things/0RekSTmGi66
The design above includes the following;
- Button wells compaitble with DMG style buttons
- Bracket to hold the back button board included in Kite's Circuit Sword kit
- Left and right peg shims
Here is what it looks like printed ...
Here is what it looks like in assembled ...
Have fun!