I wholly support drastically simplifying the tax code - I disagree with the extent to which you'd simplify it since there is a very good reason to have property taxes and some of the sin taxes have notable social benefits. Additionally, using tax rebates as an incentive to install home solar is an excellent initiative for the environment. Our tax code should be pretty simple - it shouldn't be a single line (or even multiple graduated lines).
Until we simplify the tax code, though, can we properly fund the IRS to actually audit it? I think my thing (funding the IRS) is a lot easier to do quickly than your thing (completely rewriting how the government garners revenue) and I don't want perfection to be the enemy of the good.