Unless you’ve already bought it and loaded up both your truck and trailer, you won’t know the true axle and hitch/tongue weight until you scale it.
Take the gvwr of the trailer, multiply by .10 to .13, then add in your weights in the cab and bed for your family and gear. Compare that to your published payload sticker.
Remember to not fill the water tanks full and try to distribute the trailer weight front to rear and side to side. Other than your properly set up weight distributing hitch, getting E rated tires on your RAM will help handling. Stiffer sidewalls would be important, thats why the load range E tires are better. If you can’t change tires then get a Hellwig sway bar and inflate your tires to near maximum pressure.
Then there’s the rear axle/suspension softness. Timbrens or air bags will be your friend. If you are maxing out your tongue weight you’ll likely get quite a bit of sag that has to be countered somehow.
Finally remember that you’ve got enough power to pull it, you should be more concerned about stopping it. Get the trailer brakes set up for the heavier loads, not for an empty trailer. Many 150/1500 owners are pushing the envelope, at least slightly, when they hook the trailer up with all the fun gear and the family. Your truck will do it, just drive slower, sanely and keep your following distances.