Small rear slide travel trailer

Tow vehicle would be a Nissan Frontier Pro-X. Towing capacity is 6400lbs. Payload capacity is 1170lbs. So it needs the be light enough for this vehicle. As for storage space I really want to be able to get it in my yard. That’s the motivation for a rear slide. It shrinks the footprint when stored but gives a lot more room when camping. I have about 22 feet to play with total length. The Outback is a little too long. Without the forward bunks it would probably be perfect. And I would prefer hard walled for durability and camping in bear country.