Ka-t question

[CSquared]

If you dont know... please don't waste my time... I'd rather have no answers at all than the "i've heard" or "i think" bullcrap. Sorry if that sounds dickish but i only want serious replies.

A friend and i decided that we are going to do a project car together(91-94 s13) for drift/autoX, so i have been piecing together a decent turbo setup in the process of looking for a car. I've been on ka-t.org for the last two days non-stop and have a few questions that i can't seem to find a definitive answer on.

An ideal "for now" setup for me would be around 250-260. I am trying to keep this as plug and play as possible.

This is my plan so far:
s14 sr20 t28(internal wastegate supposidley 9-10psi)
sr20 370cc injectors
walboro 255 fuel pump
ss autochrome or xo2 racing bottom mount manifold
apexi safc II
1g dsm bov
Ebay intercooler
colder plugs
3 inch custom turbo-back exhaust

Anyone have experience with that turbo? Does the internal wastegate effieciently hold the boost under 10lbs?

From what i've seen and from what i understand, it seems like this setup would put out around the 250hp i want(give or take)... Anyone with a similar setup? How much hp/tq?

I read that the 370cc injectors max out around 250... Last thing i need is to lean out and detonate... If the setup is going to make that much horsepower would that be too borderline for the injector flow capacity?

Do i need a fpr with the safc, injectors and fuel pump?

Are there any decent/common stock radiator upgrades?

Is there anything I'm leaving out aside from oil lines and intercooler piping?

Wtf do you guys do about emissions?
Appreciate it...