Look at the one mounted.
Looks fully mechanized to me, at most, he has vital organs like Robocop but the outside, looks fully mechanical. Where is the line drawn on the customization and lore for these guys? It looks like some can be just heads on full android bodies, some are just gnomes with mechanical prosthetic parts, but again, that one looks full blown android. Do we even know? Is it explained in Mechagon? I haven't progressed that far in it yet, and besides, I hardly read quest text.