Nitrous setup, parts Options

[SlowCelica94]

So here's all the parts I'm thinking about getting for my nitrous setup. Give me some feedback please. I'm trying to do this the safest wazy possible, thus all the extra parts. Also, I wanna drop a 3s in later this is good pratice to prepare me for the bigger project. That's also why I went ahead to spring for extra stuff I'll need later, like the gauges.

Have:
NOS wet kit 75-shot
Sparco Flash 5 (with the buttons)

Going to get:
Greddy SP exahust (a basic I dont have yet)
Dr.Evil CAI (easier to drill into then the stock, and a lil bit more hp)
AFC-II (will need to tune, and has a knock sensor. Also,can mess with fuel if im running lean)
Lotek 3-pod a-pillar (gotta put the gauges somewhere)
NX nitrous pressure gauge (goes to a-pillar, makes life a lil easier)
Autometer air-fuel ratio gauge
Autometer oil pressure gauge (will fill the hole and b nice for when i have the 3s)
50-shot nozzle (for street use)
100k miles tune up (colder plugs, value cover seal, spark plug seals, oil BS, seaform[cleans out built up carbon])

That's all I can think of right now. So anything else I should get, or should scartch off my list?