Looking at a used PJ Gooseneck tandem dually trailer with 15k axles and 17.5 tires. It also has electric over hydraulic brakes. It does not have a torque tube but uses under frame bridging which i guess is suppose to help with sag and twist? I think it is around 5 years old. We will be towing with a 1 ton. Any red flags here for options or brand?