donor car
or
ecu
wiring harness
usdm throttle body
egr (if you have emissions in your state)
usdm oil pressure sender
turbo tacho, plug n play (look on ebay, for sale sections etc)
to make it easier get a wiring harness for your year (i.e. (86-88) yellow plug to yellow plug, or (89-89) (90-92) grey plug to grey plug) will be straight plug in then
ignitor
coils
pressure sensor
afm (7mgte)
use your box or auto trans
use your driveline
can't think of anything else