Need:

Turbo
Oil lines
Coolant lines ( if it has them )
Charge pipes
Blowoff Valve
Intercooler
some type of fuel management ( s-afc, v-afc, fmu )
bigger injectors if using s-afc or v-afc
a/f gauge
boost gauge
vacuum line
oil fittings
filter for turbo
downpipe made for your car
exhaust manifold ( CX, HF, STD )
adapter plate from manifold to the turbo ( purchased at www.homemadeturbo.com )

did i forget anything???