The best suggestion I can make is to use a digital camera as you dissasemble the seat. then you have something to back to on reassembly.
the screws that hold the seat tracks on are a PITA to remove. you will have to move things just right to get the screws lined up just right to get the screw driver down a hole. believe me, they will line up, but you will be pulling your hair out.
I worked until 2AM one night here on the kitchen floor, replacing the spring box because of 2 broken springs. I wanted to keep going while I had it fresh in my mind, but I wasn`t too fresh at 2AM. Installed the seat, and now I don`t have seat height. It is all the way up

. I didn`t hook up something

. at that point I wasn`t ready to remove the seat again.
Charlie