There's a lot of terrific info in this thread from mhassler about the RRO lift installation.
I did this one myself about a week and half ago. There is some additional info in my thread some might find helpful, such as fastener sizes and other "gotchas" to watch for. This was a lot more tedious than when I put the 2" lift on my 98 XJ. Even with spring bolts that had 13 years of rust on them, it wasn't as difficult as doing the RRO lift. I'm not a novice. I grew up under the hoods of cars, typically do all of my own repairs/mods/maintenance short of trans and engine rebuilds, and have had several Jeeps over the years. This lift was difficult, and I was doing it by myself on top of that. Looking back on it, I would have gladly paid $400 for a shop to do it.
Decided to pull the trigger on most mods at once