I agree w/ the others get the bottom bumper painted first.
You should also consider painting your mouldings and door handles at the same time. An all red car w/ those black gunmetal rims would be f***ing sick, especially w/ the polished lip.
Check it out in photo shop or something to make sure you like it.
And wax your car, it really, really, really (x500 times) really needs it.
Sweet car though, nice work so far.