Welcome to the site. I know it's probably not what you want to hear, but almost all of this information can be found here and on the Nico forums. Nobody wants to write a step-by-step guide because a) it's a ton of work and b) if you figure it out you take pride in that and then don't want to share it.
In the end, it's not hard if you just honestly take the time to read and spend the time required (with the right tools & parts) to do the job. I didn't have the time so I paid somebody else to do it and it was a total waste of my money. I would have been better off suffering through 6 months of doing it myself because in the end, that's the only way to do it right.
So, far starters...
Replace the necessary parts on your engine and in your car to prepare for the swap, understand the wiring (thoroughly), and buy the necessary upgrades to make the swap fun. Take your time - do it right. Ask specific questions here and those who are more knowledgeable than me will likely answer them. Otherwise, you'll get a bunch of "Search the forums nub" responses. ; )