Hello steve .. I can share the cad drawing (dxf)if you needed.
What I have done is laser cut the GI sheets , welded inside to make a box and then painted in a painting booth. Front fascia is made of acrylic on top of GI. It has laser engraving on it . Switch knobs are also acrylic , engraved and sliced on laser machine. Homebrewers can very well manage to make a cabinet.
I do not have any intention to commercialise radioberry. I have done it just for my use .. and made another one in our MQTH for experimenting .. which was enclosed in an aluminium cabinet which has a milled front and rear panels.The video has the milled one. I can share the details if any one need.