I'm for making the Federal Government ask the states for it's revenue, if not gathered from tarrifs (ie, no direct federal taxation). But abolishing the IRS and replacing it with a sales tax is a step in the right direction.
It didn't work from 1776 to 1789 and it doesn't work with the UN asking its member states for money. Why do you think it will work any differently with a NST? -- Unless you actual goal is the destruction of the federal government structure.