The head and cam choice is perfect.....BUT watch out as the BD14 will touch the piston unless you have cut outs...std springs will be fine too.

Pistons are fine...BUT if you get genuine cossie racing ones from GGR they are machined and will not be noisey.

At your power level std head bolts will be fine..if you can afford it go long stud though especially when using a metal headgasket as these do require more clamp.

Everything else is fine...and should see a nice solid 400bhp