Dry weights don't always include any options such as awnings, AC units and the weight of propane tanks. So, you usually need to figure that the dry weight is lower than the actual weight of the trailer as it leaves the factory. You need to crunch the numbers and see what a realistic towing weight will be for your truck. I'm guessing that you would be better off having the loaded weight of any trailer to be 6,500 lbs. or less. That would mean looking for something with a dry weight closer to 5,000 lbs. which gives you 1500 lbs. for options added to the trailer, propane, a bit of water and the gear you carry in the trailer.
But to be more precise, check the figures based on payload of the truck so you have to subtract the weight of passengers and gear in the truck and the tongue weight of the trailer.
Although my truck can technically pull 10K, I'm pulling 6,200 lbs. or so and feel that the truck handles that weight fine.....wouldn't want to have an 8K or more trailer for long term towing.