Congratulations on your new TT have many miles of safe travel.
I have the same floorplan w/o the rear bunk.
I would go to a scale and weigh it. Make sure you weigh each trailer axle to make sure you are not overloading two tires on one axle. Under inflation and overloading will cause tire issues.
Your trailers dry weight does not incl any options. Most TT options come in around 500#. Your personal stuff adds up real fast . Don't be surprised if you weigh it and find that you near 6000#.
Use a bathroom scale and weigh everything you bring into the trailer or load into the truck .
I would search the methods to "properly weigh a travel trailer."