Welcome to NICO!
A good place to start would be our sponsor IAP.
http://www.import-autoperformance.com/
Even with your NICO discount, their kit will run you more than $3000. But at least you'll learn what you need to setup a KA-T.
You probably dont NEED a rebuild for 300whp, but if you can spend the money, its added piece of mind.
You can piece a kit together yourself for about $3000. Take some time and look around. You'll see plenty of options to consider. Also, be sure to check out the KA-T FAQ at the top of the forum. It has tons of good info to get you started.
Here's a parts list I made a few years ago. Hope this helps...
General Parts Listturboturbo exhaust manifoldwastegate (if turbo doesnt have internal wastegate swing valve housing)
downpipe (connects turbo outlet to cat/test pipe)-turbo outlet flange-piping-fittings (O2, wideband O2, EGT)-wastegate return pipe (from wastegate outlet to downpipe)--external wastegate onlytest pipe (takes place of cat, connects downpipe to catback exhaust)catback exhaust (mandrel bent)-piping-muffler
larger injectorshigh flow fuel pumpfuel management (piggyback, JWT ECU retune, hacked MAF)ignition management (timing retard control)--over 8 psi
intercooler (front mount)-IC piping (mandrel bent)-silicon hose couplers and transitions
BOV (with flange of same material as IC piping)
oil supply kit-oil pan bung-braided oil lines-oil line fittings-'T' fittings
water/coolant supply kit--watercooled turbo only
gauges-boost-oil pressure-oil temp-water temp-EGT
intake piping (mandrel bent)cone filter
gaskets-exhaust manifold-turbo flange-wastegate
vacuum hoses (silicone or rubber)-'T' fittings
clutchflywheel