Nope, you are too to tall. You are 4" taller than I am and I'm on an L.
And by the way, 191cm is 6' 3" not 6' 2".
Have a look at the Bombtrack Beyond, it's a nice bike.
Go to the geometry page for the Salsa Fargo. Look at the stack and reach dimensions.
Compare them with the stack and reach dimensions for other bikes. You will see that the Fargo is higher and has a shorter reach.
And you'll see that the XL Fargo is significantly higher than the L.
I'll think i stick to my road bike for now and wait for the 2017 models to arrive.