roof set-up

I currently only have the stock rack on my 2000. I have plans i have drawn out that require four roof rails. I want to get a factory rack off an older model that runs the whole length of the roof. I assume a junk yard is the best place to look for this. What is involved in swapping? Is there a write-up any where? pictures? has anyone done this and do you have any advice?

well your going to have to drill holes. Not sure if the older style cross bars will fit the 97+ roof rack.