If you peice a kit together yourself, you will save alot. Not sure about you're experience and knowledge, but you will gain alot in the process. Some info: http://www.homemadeturbo.com What year integra did you get? Can we see a pic or 2?

First thing to do when considering any type of modification to your honda, is learn about tunning. http://www.pgmfi.org is a great place to start. This is necessary reguardless of what direction you take (NA or FI).

Good luck with your build!