[ThePair]

The factory could probably replace one slide out with another, but that's not what you're looking for. QB doesn't have a slide, it has the permanent bed. I've not seen one in person, but I'm not sure there's an easy way to completely remove the slide from one model and then make the front wall strong enough to support the bed.

What exactly are your goals for this? I needed an extra bed in my SL so I engineered bunk beds out of a disc-o-bed cot, and it worked great. I was also very grateful to have the extra floorspace of the SL when the kids weren't sleeping. I could easily have slept 2 smaller kids on the couch, or another kid (or 2) on an air mattress/camping cot on the floor in front of the couch.

Let us have some more details...