2015 26RBPR premier ultral lite F-150 towing questions

Assuming at least 900 pound tongue weight (assuming the standard 12% on a fully loaded trailer), the weight of humans, you are at 1,325 of payload before any gear in the truck. That leaves you just 260 pounds of payload. It can be done, but you'll be close on every trip and you'll need to pack wisely. Good luck.