Unfortunately, the seller couldn't find his keys for this cab, so I haven't been able to look inside the control panel. Hopefully he finds those keys. However, I stuck my head inside the service door and it looks like the control panel should come off with the removal of 6 or 8 screws. It's a nice, compact cabinet though. I was able to get it into a bedroom without removing any doors.
Fortunately, I don't have to worry about any cute critters trying to run inside my cabinet (and right now, I couldn't lock the service door even if I wanted to)