Advertised curb weight is the lightest configuration available. Weigh your truck to find out the available payload.
Then you will need to allow 500 pounds for stuff going in the camper. Then figure out the wet weight of the camper you look at. Finally figure a few hundred pounds for options that aren't considered in the dry weight of the camper. Oh, don't forget about figuring any other people or pets you are carrying.
So in reality, even if your truck only weighs 5,090, you would really be wanting a camper with a listed dry weight of 3,000 pounds.