Here we are! Sure enough, I made these a while ago and thought I posted them somewhere convenient. These are STL files of the Altura MKII cabinet, and lid. For the Cabinet model, I merged the individual kit components into a single mass, which you can print as one piece. It contains undercut features and will require some support structure. The thick end parts can be shelled internally and printed at lower interior density to save a little time, weight and material.
The lid contains no undercut features if printed face-down.
Be careful with units!! These models are either in decimal millimetres or decimal inches. The correct-size lid, for instance, is about 4″(100 mm) wide x 5″(125 mm).