God Help Me...

k guys i got a 94 Integra LS that's aching to be turboed.
i've spent many a long hour contemplating my engines doom and/or destiny and i can't seem to find the right (not the cheapest but close to it) way to go.

here's my list:

turbo mainfold
downpipe
255 fuel pump
t3/t4 turbo
wastegate
BOV
intercooler
550cc injectors
2.5 inch exhaust

here are my questions:
(i am going to start with 6-7 psi)

1. do i NEED the new exhaust right now?
2. do i NEED new injectors right now?
3. how do i deal with the fuel system..
-fuel pump booster?
-get dealership to reprogram the ECU?
-or is there another something?

and that's all i have for right now

i will have more questions later DONT WORRY!

thanx for the help in advance!

-Ryan