Lets triple that amount to 2800:).
And add another 1 million foreigners that will dig their way through the Swiss Alps , get one time machine and in 10 years you're going to ask yourself:
"What the hell happened to Switzerland !

"
Some 500 million plus people with Schengen visas and you are saying that just 1 million will climb the Swiss Alps? I think we can be pretty sure of at least 2 million from Romania alone.
The monetary reserves will run out in 10-12 months. After that we can sell the Swiss Alps, peak by peak. Once that finishes, we can auction parts of the Lake Geneva.