I was in your same boat about a month ago...read over my thread, it may answer some of your questions. I just put on the RC 3.25 inch lift and am running 35s. You can click on my profile to see pics of it.
The only thing about that lift kit, much like mine, is it's bare bones. Doesn't come with adjustable front track bar or adjustable control arms that with a 4 inch lift you are definately going to want. That is addressed in the thread too. I bought control arms and front track bar seperately.