Sounds good doesn't it ?
According to our Constitution 2/3 of state legislature's must ask for a Constitutional Convention and then 3/4 of the states must vote for it.
If we started the push today we could have this done within 2 years. Make it a required pledge of your state legislatures that they would vote to abolish the income tax if they are elected.
I mean really, what taxpaying citizen would not want to keep their money ?