Hi Phil
If you are looking in the Sunline brochure, dry weights are what they list and that is the average model for that year less:
Battery
LP gas in the tanks. (The actual steel tank is included)
Any other options Sunline added at the factory would be above the average model dry weight.
LP gas the dealer fills and they also provide the battery so Sunline does not declare them in the brochure.
Also keep in the the dry weight in the catalog has no camping gear in the camper. When you start adding gear, both the axle weights and tongue weights will go up above what ever is declared as a dry weight.
Hope this helps
John
PS the only real way to know loaded tongue weight is to scale the camper.