if you are worried about loosing parts, while taking the reel apart, do it in a large ziplock. that way if anything pops off, it will pop right to the bottom of the bag.
I have never cleaned a Revo SX but I have done Abu 6500's, Calcutta's and a lot of spinning reels. If you are concerned with not remembering how to put all the pieces back together, take pictures of each step. every time you take a piece off, take a picture. It helps tremendously when putting it back together. Also, make sure you have a large work area and lay everything out in the order that they are taken off.
I have a lot of pics of my cleanings, if you want some, PM me and I can email them to you.
Mike