@nicodemus,
I think no one on this forum is in possession of the information to deal with the specific numbers, but its my opinion that our government, if it returned to its constitutional role of providing for basic, public infrastructure, defense and very little else, wouldnt need to impose any kind of income tax or national sales tax. The states could raise their taxes as needed and the federal government could easily raise enough revenue through corperate taxes, terrifs, etc. If this sounds like an impossible utopian fantasy, see the period in American history between 1789 and 1916.
I wonder if its coincidence that the federal income tax was imposed just a few years after the Federal Reserve Act passed Congress. On that note, I reccomend a book called "The Creature from Jekyll Island: a Second Look at the Federal Reserve System." Does anyone here know about the founding of the Fed who is not appalled by the story?