Wiring harnesses

[b454rat]

I want to get a new wiring harness for my suburban and have a few questions. How much of a job is it to rewire a truck? Is there any good/better/best kits to get, from any particulur company?? I was thinking of getting one from E-Z Wiring. I can get a color coded harness for $165. What about the assessories, do I need to buy newer style or can I use what I have. I want to get this running and on the road this spring, and right now the wiring is the biggest nightmare.