Hey I'm trying to get my nitrous list down any help is welcomed.

Here is everything that i plan to get:
1. Nx wet kit (I only intend to have a 50 shot)
2. 1 step cooler plugs ( I read about the NGK copper plugs and am currently shopping for those)
3. GenX-2 up-grade kit
Do they make specific GenX-2 kits for specific nitrous kits? for example, a gen 2 kit for a ford NX kit and a different gen 2 kit for an import. or is there just one Genx-2 kit for all the NX kits. tell me if that makes sence
4. Nitrous pressure guage(comes in gen 2 kit), EGT guage, and fuel pressure guage. I think thats all i need.
My current set up is I/H/e/p/vafcII
and all this is on a 01 SS
Is there anything else that i need or left out? Any comments?
Thanks
Jesse