Please dont use ebay turbos or whole turbo kits. They are shit!
You have to piece one togather your self. Check craigslist and yard nearby if you want it to be cheap.
You also need injectors. Thick intercooler piping. I bought mine from ebay but made sure it was at least 2mm wall thickness. Ebay intercoolers are ok. Dont forget about some gauges and at least a wideband O2 sensor.
Do a little more research on what you need and what works.