It's pretty easy to just drop one section Drew. Each of the seems has a tension rod, removing one of the door trims and unfold and you will expose one of these, bend and lift and it will drop out. I would just get a length of Nylon strap or similar and use it as a trace and thread your cables wherever you need it mate.
Ask AB for one of those rods he had as a flag pole for the Simpson. Perfect for the task. Don't get too carried away with pulling down too much lining.