It looks like you would have to cut the rear floor mounts off and modify the front ones to make them sit right, but they would look really nice[8D] It would also depend on how wide they are so the dont get in the way of the engine cover.
Can't help you there but I'm not sure you could use them as a bed, I don't think they would go back flat enough to be able to sleep two people across them.
They do indeed, it's an Autosleeper option. Not the comfiest seats to sit on and awkward to set up into a bed, they lift and drop rather than rock and roll:I but they look good