The figure for 2 trillion is correct.Have you heard of cost over runs?
So no actual links, just some figures you pulled out of your ass, eh?
But assuming you are right this time, you've just proven that there's plenty of money for a NASA Manned Mars Mission. Because NASA has put forth less ambitious manned mission scenarios with estimated budgets of only about $30bn. Utilizing the noknowes magic cost overrun ratio of roughly 4.44 to 1, that gives us a grand total of less than $150bn to fund one of these alternate mission plans.
I also notice you've totally ignored addressing the propulsion issue.
Not at all surprised.