Yes, the SSL will start at 70t and move forward to (maybe) 155t.
But no, 10 13 ton lauches of the Falcon 9 does probabbly does not get you the same thing as a single lauch of 130t. Assemble is a issue. Some things are better built and have less wastage in large intergated units on the ground than assempbled in space.
We should compare apples to apples, not oranges. Which leads me to my biggest gripe about NASA (and by extension, the American government) – their plans are so murky and ill defined. Each stage of the program was like a rung on a ladder – leading to the eventual goal. How does the ISS fit into going to Mars? How does the SLS? How come we are always punting this thing down the road by 20 years. It is almost a program in search of a mission. Please don't take this as an attack on basic science and research – just how NASA does it.