its all bolt on. Some of the other stuff is a little trickier if you dont have diagrams for wiring and whatnot, such as the 3 bar map sensor, and some of the gauges. Im no expert at that stuff unfortunately. It helps to have friends that know their electronics.
However, almost everything else is straight forward.
Unbolt your header and intake. Figure out how you plan on mounting your intercooler, and start putting everything on. Ill tell you this, you wont get it all on perfectly in 1 shot. s*** will need trimming, or modification usually.
Make sure that the lines you are running that arent AN fittings are teflon taped or youll start leaking oil. If your turbo isnt primed, you can take a screw driver, dip it in oil, and let it run a few drops down the inlet for your feed line, spin the compressor and then the inside of the turbo will be lubricated to prevent it from dry starting.
Having a vacuum block comes in handy for your boost gauge, and lines for your blow off valve and wastegate. If you are running a tial wastegate, run a line off of the side of it and not the top if you arent running an EBC. And zip tie your hoses.
Also having a sandwich plate make things much easier for running lines and oil pressure/temp sensors.
I cant think of anything else other than take your time and have a spare vehicle when stuff doesnt fit or work right.