Ok I've finally bit the bullet and bought a T4, something I've always wanted to try so I hope it's not a dissapointment

Basically i have a good spec stage 3 4x4 saph, which has standard internals and so far i dont plan to meddle with that too much until I have it all up and running.
From what I have read on here to fit this turbo I will need the following;

This is my recipe ** things I dont have yet.
T4 turbo
Alternator drop braket
2WD manifold
Turbo hanger thingee**
Bigger hoses for the T4**
Siemens 83 fuel injectors
Air injectors**
Modified exhaust downpipe with lambda boss for closed loop**
RS 500 cooler
Grp A headgasket
Alloy Radiator
Breather system
3 bar
Grp A pump with new loom and full aeroquip
Swirl pot and all the shiney nonsense
New fan loom
Chip of some description?**

From doing some research and calling MSD (James) I was advised and explained the benefits of running air injectors with this setup, something which I had overlooked and now almost fully ubderstand why, I would be alot more comfortable doing it this way after reading more about it last night.

So my next quaestion is, what have I forgotten???