self built turbo kit

hey i am looking to turbo my 1996 integra ls... at first i was going to just buy a drag or rev hard kit for like 3000. now im wondering why everyone says build your own.. does it really save you money and if it does where do u find the quality parts for cheap...im looking to spend about 2500 for a quality turbo kit with all of the following...mainfold, wastegate, bov, turbo, downpipe, injectors ,fuel pump, hondata ecu, intercooler and piping, and oil/ vaccume lines

what websites have this for a decent amount of money and will i be able to get this for around 2500???

also let me know your fi setup and what your running in the 1/4

thanks!!!

search and go to this site
http://www.cse.uconn.edu/~yelevich/turbo/turbo.html

thanks alot that is a great website