Ok so im guessing im not the first person to ask this but i fancy upping the power on my 3dr Cosworth to around 400bhp with anti lag. Its a standard engine so im guessing i need

Injectors (color?)
RS500 intercooler
Group A fuel pump
Turbo (recomedations)
Set up

Is there anything else as im a bit clueless, what kind of price am i looking at for all the parts and set up? £2k?