I do like that idea, I would consider if the truck were to turn into a family camping truck, but as it is with the wife and our dogs, most of the wheeling weekend trips I go out on I'm solo.. so it does make packing/sleeping significantly more streamlined.I know its on a much lesser scale my 1500, but I picked up a bed slide for 450$ of kijiji years ago and man does it make my life easier getting stuff out of the bed.
I even started (started not yet finished) a set up of shelves to pin to it for long camping trips. the cap slide combo rocks, but it adds weight and you would have the same issues with trees. Man I gotta find our way to BC