For some reason Bob, your desciption of Kohbu's engineering space is making me picture a tesseracted space containing all the mechanicals and other stuff. Which completely runs in the opposite direction of how I think the Kohbus are powered (coal gas generator/boiler linked to a Sterling-cycle engine, controled by a type-W/N hybrid interface), but hey it's your story you can do the tech any way you want.
--Rod.H (who still trying to work out the AV-98s drivetrain)
--Rod.H (who still trying to work out the AV-98s drivetrain)