A friend of mine planned to put a kit together and never proceeded to finish buying parts. I thought maybe I could buy what he had and what was still needed and piece one together. I just wanted to have someone look over what i planned on doing and let me know if there would be any problems.Please let me know if i missed anything. I plan on running a piggyback to the ecu probably unichip to save a little cash. Thanks in advance.

He has the following:
xs power t3/t4 turbo(f*ck that) Going with garrett
jdm stainless steel turbo manifold
Godspeed 28x6x2.75 FMIC with necessary pipes and fittings

I planned on purchasing the following:
RC 440cc injectors and clips

35mm wastegate
manual boost controller
turbo-back exhaust system
hks ssqv BOV