I'm separating this comment from my previous because it addresses an entirely different issue. One of the common payload management strategies for 1/2 ton pickups is to move gear from the truck to the trailer - bikes, tool kits, wood...all of this is sometimes moved to the trailer to lessen the load on the truck.
In your scenario, however, you have minimal carrying capacity on the trailer as well. 1,000 pounds of carrying capacity for a 30' trailer is very small. Your trailer is already likely a few hundred pounds above the 'dry' weight with filled propane, battery, etc. And, if you travel with water, that can readily add another 200-300 pounds or more to your. All this is to say that you won't have a lot of room to move things from truck to trailer without overloading the trailer. You will be tight all around.