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The fact that he mentions a throttle body should make you realize this isn't this best bang for your buck.
As a supporting mod the TB would provide gains for that setup. They wouldn't be huge. But in the end with all that he would end up around 400 whp. And he would be one of few N/A beasts.
I say supercharger. All the other little things can be done one at a time with a lot less money at once. Getting supercharged takes a lot of money at once, so if you got it, I say put it towards the blower.
Go FI, you'll be very happy, I know. You could get the paxton or vortech package at a very reasonable price. You should be able to do the install your self or with a buddy. Its pretty darn simple. Extra cash could go to some suspension mods or guages.