Paia used to carry a dirt-cheap rackmount box without a faceplate that was decent enough. I have a rackmounted Paia Fatman and I didn't want the guts just hanging loose. For a rackmount panel of the MBSID, check the regular .fpd file at http://ucapps.de/midibox_sid_manual_fp.html and drop it into a 3u template in Front Panel Designer.