cheap! it's a right old knacker. i want to do it myself. it may be a bit hard going round the mechanics, but i can't take them off myself, i'll totally feck everything up, but honestly, it can't look worse than the paint job that's on it at the moment!
Be handy if you got a bit peckish on the way to work.
Seriously, with the Carrera you'd be best stripping it down and getting it powdercoated. If you can strip and re-build it yourself, the coating would set you back around £40 or so.
I did a pink Land Rover many, many years ago using red and white Smoothrite. The mix is very, very little red to tons of white.
It was too easy to start with a touch too much red added to the white and all I had was two pots or red and no white!