If you had been standing beside the truck when the weight was checked, it was probably within 75 pounds of the factory sticker. So changing the fuel level will get it to the factory weight exactly, on that scale.
Like stated above, changing to another scale might change the weight by 100 pounds or more.
If you needed a truck with exactly 2,200 pounds or a little more, then you could have selected a truck with a 3,000+ pound cargo rating, and then be sure that you would not be over the GVWR with the trailer you planned on towing, even if you decided to bring along a generator, some extra firewood, or something else.
Good luck with your new purchase.
Fred.
