hi mate nice porject something a bit diffrent, as for turbo'ing it sure lots of places in the us turbo the focus with the same engine and sell off the self kits? try ebay.com , as for the rad agen surly a focus one will be up to keepin it cool if they use that engine , not much help but best of luck .. as for the 4x4 a few years ago well maby more 4/5 years ago i saw a fiesta with a audi 4x4 set up!