If you DO NOT wanna wreck anything, and aren't super familiar with the territory you're about to enter, you should use the turbo engine management to be safe. Use an EJ22T ECU.
Assuming you get the EJ22T IAC valve and injectors (which should both be mounted to the intake manifold), the only additional electric/electronic parts you need are the pressure sensor, pressure exchange solenoid, and boost control solenoid. All three of these are mounted near each other on the passenger side strut tower.
If you can't find a pressure sensor and pressure exchange solenoid, it's possible to use cheap and common Chrysler turbo parts instead, with a little ingenuity:
http://www.graphics.cornell.edu/~v/chrysler_map/
And if you can't find a boost control solenoid, you could just leave it out and use some other kind of boost control (it might not be a bad idea to start by just connecting the wastegate actuator directly to the compressor outlet). A 470K 1/2-watt resistor can be wired in its place to pacify the ECU.
Your stock MAF sensor is the same as a turbo MAF sensor, so you're set there.
Like Matt said, the easiest way to go is to use your stock wiring harness and just add the pins you need. Use your
entire stock harness, including the portion that's mounted on the engine under the intake manifold. Then reverse the "(+)" pins for the cam and crank sensor at the ECU, and add wires for the boost control solenoid, pressure exchange solenoid, and pressure sensor.
So you'll be modifying your stock non-turbo harness to adapt it to a turbo ECU. It's pretty easy to move and add contacts to the ECU connectors; if you look at them closely you'll see what I mean. You switch those two contacts, and then add five additional contacts that you will have to get from another harness.
"Just reading vrg3's convoluted, information-packed posts made me feel better all over again." -- subyluvr2212
thats all i can think of for now
but i will be going that route anyway cuz i needa get this damn project started.