Out of curiosity would painting certain components under the hood be a bad thing? You know like how they do at car shows where some people paint some hoses and bolts to make parts stand out. I know theres a fine line between it looking cool and cheap. But would/have any of you done this or know someone who did? Can you post some pics?
Hulk,
You can buy alot of this at you nearest auto part store. In fact, the colored hosing that you are talking about, usually they have spools of hosing you just have to tell them what size that you do need.
For the spark plug wire sleeves you can order that too. that is just almost plug and play.
Spark Plug Tube Insulator | AutoZone.com
In the car club that I belong to, I have seen people put a then lair of line-X then paint and it comes out us fine. I have always used thin coats high-temp paint ( so it would not crack and flake off from the excessive heat),sand paper, and an air brush. Lastly, I will tell you to take you time and practice.
I will look for some photos of the engine work that I did to my Galant and I will post them so you can have something to some kind of idea.