T12 Hakko iron controller portable case

This is case for Hakko T12 STM32 iron controller available from banggood:
https://www.banggood.com/STM32-2_1S-OLED-T12-Solder-Iron-Temperature-Controller-Welding-Tools-Electronic-Soldering-DIY-p-1182718.html?cur_warehouse=CN

I intended to make it portable since the very beginning, but then I forgot the mounts for the battery belt, so I had to glue them on as an afterthought later :P
I intended and use my controlelr with a small 4S 1500mAh lipo battery with XT60 connector. In order to hold the battery firmly in place, the back cover requires a piece of silicone rubber such as this one:
https://www.banggood.com/3M-Gum-2mm-Battery-Silicone-Anti-skid-Pads-p-1098067.html

The controller is mounted into the case by the means of encoder nut and a reasnoable amounts of hot glue elsewhere. The LED duty cycle indicator was also broken out from the backside of the board to the front of the case.

Sometime later, I hope, I'll cleanup the model files, add mounts and generate .stl out of t