How to wire a P90 and HB?

Hi everybody, i have a cheap ibanez gio hh strat. It has a volume, a tone and a three way toggle switch. Was thinking of changing the pups for a while. So I bought a phat cat for the bridge and a pearly gates bridge which i intend to put in neck. I have no idea how to wire them. I want to split the pearly gates in the neck. And also wanna try parallel wiring the pups not sure how that works, though. My question is, what kind of hardware, i mean switches, toggles, pots, push pull pots etc. should i buy. And how would the wiring be in my desired setup? I have a luthier who would know all this stuff of course, but want to be sure everything is done right and i dont want to spend unnecessary money. Thank you all.