I see the max payload for the truck is 1,831 lbs.
We put ourselves (2 people with a total weight of about 350 lbs.), 2 Dalmatians (totaling 100 lbs.) and a 6-lb. Maltese in the truck...a bit less than 500 lbs.
In the trailer we have a small amount of food in the fridge (we shop when we get to the show), a few dry groceries (no cans), clothing for a weekend, towels, & bedding.
There is storage is under-bed and in there we have a grooming table (20 lbs?), 2 folding chairs (5 lbs. each maybe), and a crate dolly (20 lbs.).
A small outside storage compartment holds two plastic totes, one with fresh-water hoses, the other with hose to flush sewer hoses.
We carry two sewer hoses in the bumper storage.
We seldom travel with anything in any of the tanks.