I have nothing against the Tundra. Ours carried our 1000 lb Phoenix and performed flawlessly for 11 years. We had zero problems and zero complaints. But when we graduated to a Northern Lite 10-2, we graduated to a dually. We would not have considered putting the Northern Lite on the Tundra. And the Northern Lite weighs less than the Lance 945. And then there's the trailer.
As a mechanical engineer, and having done design for Ford Motor Company, I am not inclined to push a truck very far beyond its design specs.
Nuff said.