I have just completed the design of a replacement for the box specified in the BOM for the version 2 rotator. The design files are available from Thingiverse; Project Case for SatNOGS version 2 Satellite Tracking System by wandrson - Thingiverse
The box case is designed to be laser cut from 3mm thick acrylic, with four copies each of two 3D printed corner pieces. I did make one change to the v2 design and that was to add shaft collars to ensure the worm gear did not slide along the shaft.