How much would I be looking from a mechanic for replacing the intake, exhaust and valve cover gaskets. Meanwhile replacing the CCV system entirely as well. Probably give the ICV and throttle body a clean aswell.

I'm in north west(UK) so not entirely sure how the prices would range between north and south. Also asking to decide whether I should give it a go myself or is it easier to give it to a hands of a "professional".

This is on a 325Ci 2001, M54B25