I think the easiest way to make a bed in the back, with storage underneath, is to make use of the platforms that are already in the vehicle -- just forward of the two rear storage bins (see picture below that shows these small flat surfaces). These platforms are about 11" up from the floor.
For the forward part (where the rear seats usually are) just construct a simple platform (also 11" high) and place it on the floor.
The vehicle's interior at this height is exactly 48" wide, making it super easy to slide a piece of plywood in, cut to whatever depth you want.
I installed two hinges on mine for easier access. See pictures below...
The nicest thing is that this is only two pieces - the plywood and the wooden platform. That way it's easily removed when you want to put the seats back in.
For the forward part (where the rear seats usually are) just construct a simple platform (also 11" high) and place it on the floor.
The vehicle's interior at this height is exactly 48" wide, making it super easy to slide a piece of plywood in, cut to whatever depth you want.
I installed two hinges on mine for easier access. See pictures below...
The nicest thing is that this is only two pieces - the plywood and the wooden platform. That way it's easily removed when you want to put the seats back in.