Cutting though a kitchen machine for demonstration purposes: How, where and who?

This is a bit unusual, but life is like that.

We (rather, my developer colleagues) are developing the software for a kitchen machine (food processing by means of a rotating knife in the mixing bowl and heating) not unlike the Th*rmom** from Vorwe** (but cheaper and yet, much better ;). The machine has a front jog dial and an 8" display on the front, the body is ABS plastic, the mixing bowl is stainless steel. Inside you'll find a circuit board, cables, high voltage components and the motor. Luckily the motor is a bit to the side.

For demonstration purposes, I would like to cut/cut/machine through the... machine lengthwise, from front to back, through the jog dial (plastic as well as aluminium), through the display (basically an Android tablet), and through the machine itself. This way, most of the "hard" parts like the motor are on one side and don't have to be cut through. The height of the machine without the mixing bowl is just under 30cm (11 of the small freedom units). Filling the whole machine with epoxy, waiting a week and then cutting through it might be ok, but it probably won't be (we have plenty of machines that are broken somewhere that we could try, but so far everyone has been reluctant).

Now, I've contacted a couple of waterjet cutting companies and they've told me that the effective (as in "makes sense, will work and won't destroy the guts by just shredding them") cutting depth is more like 4cm than 6cm, anything over 6cm will just give you shredded and mixed parts, not a clean cut. Makes sense when you think about it.

EDM can only cut through metal, and we have a lot of plastic parts. I don't have a band saw, nor do I know anyone who would try to cut through the machine with one, it wouldn't give a clean result (I suppose?). Diamond wire cutting does not seem to be available in Proxxon sizes ;)

Engineers of reddit, what technology should I research further, where should I focus my attention to cut through said machine cleanly for a demonstrator to show off what it's liek "inside"?