set up question

Hey guys im planing on changing my set up this year if I keep the car and figured id see about some imput.

curantly on the car I have:
gt28rs
700cc injectors
244lph walbro
z32 maff
e-manage with all harness’s
spec clutch
and a toda lighten’d flywheel

my thoughts are to go:
t3 turbo
and add a skyline diff (for the 4.10 gear)
a set of cams (more for lower end torque)

im thinking in the end I will come into full boost in the higher rpm but the diff will make that rpm point come up way quicker and the cams will help give me more lower end grunt making the set up more responsive and posably quicker.

all your constructive input would be great but please have reasons or exampes for your coments.

Thank you in advance
Mael