it sounds like the same spec ZVH im building at the mo, im doing a 1.8 one as it is alot easyer, but still costs a bit tho.

turbo wise, im running a stage 2 hydrid, i will also be running a saff cossie intercooler. as for pistons, i am using the standard zetec pistons, but they have been machined down by 30thou to reduce comp hieght, but doing this does weaken the piston to a certain extent, but it is a cheaper option if your not going for a BIG bhp motor, if you do skim the piston you MUST have the zetec oil spray jets fitted to cool the pistons down or they will crack

management side, i sticking with MFi as with a few tweeks can fuel a 230bhp motor fine.

clutch, you will need a uprated one IMO

gearbox, well im running a standard box at the mo, but once it goes bang, i will upgrade to a stage 1