I think it would be prudent to take two passes across the CAT scales loaded for camping to determine what the real tongue weight is for two reasons. The Airstream literature has been known to be wildly optimistic with low ball tongue weight numbers. In that era, sadly each trailer was unique, as has been reported many times on the forum. Thus, there could be differences in weights between two similar models.
So knowing the actual tongue weight would give you a reference to insure the tow vehicle hitch ratings are not exceeded.
The second reason would be to verify that you have at least 10% (to a high of 15%) of the total weight of the trailer on the hitch ball so it will naturally tow properly.
The cost at the scales would be under $15 to have real numbers at hand. If there were ever an accident, you would have a verifiable proof that the tow vehicle and trailer were within load specifications as you typically loaded them. Heads off an adjuster or lawyer saying the unit was overloaded and caused the accident....
WBCCI Life Member 5123, AIR 70341, 4CU, WD9EMC
TV - 2012 Dodge 2500 4x4 Cummins HO, automatic, Centramatics, Kelderman level ride airbag suspension, bed shell
2014 31' Classic model 30 twin beds, 50 amp service, 900 watt solar system, Centramatics, Dill TPMS, disc brakes, 16" tires & wheels