Here's a Bolamite without the cartoon style of drawing. :P
The lack of big machinery may simply be due to the different location of the game, which seems much more rural than industrial. The Outlaws also might not delve into large-scale manufacturing so much simply because they're outlaws, and wouldn't be able to set up a legitimate company like the Magog Cartel. They definitely have weaponry and don't just wear loinclothes.
But I just realised your idea includes Clakkerz, for whom I will definitely agree with you. Heh, I guess in my haste to forget about them where ever possible, I forgot all about them
EDIT: I should credit Depths Of Oddworld for blowing up that image from AIA.