Manifold £350
Turbo 200+ for second hand
youll need full exhaust 300+
Or bodge mod on current stoc exhaust £50+?
Ecu (e-manage) £300+
Intercooler and pipework 300+
misc stuff (service vacume pipes injectors and all that stuff) £2-300+
fitting labour (depends on how lucky you get) 500 odd, lots more if you take it to somone who knows what they are doing.
all in dont expect any change from 2.5K+ or so. Ive really simplified this, turbos always end up eating money, and this would be for a basic conversion.