You need to get the following:
-exhaust manifold, turbo, downpipe/cat, <all the heat shields for these, oil feed line, oil drain line, coolant feed line (with all of the line and fittings, all the way to the head, especially the banjo with barb fitting... lol), thermostat housing and tube, coolant drain line, get the airbox and lid from the turbo car (unless you want to go cai, in that case mail the airbox lid to me, lol), go ahead and get all of the turbo air piping (from turbo to throttle body, you can't use it all, but will help with mock up), intercooler with all the brackets and braces, go ahead and get all the plastic shrouds that are around the intercooler (i don't think you can use the one that the bumper attaches to, because sky vs solstice). Keep all the fasteners you come across while removing everything.
What else you will need:
-bigger injectors, map sensor (2 or more bar), the plastic piece/shroud that fills in between the bumper and the intercooler(see Rob's build for part numbers).
-optional: boost gauge, boost controller
I may be missing something. Hopefully Rob can fill in the blanks!