I didn't watch this because i'm at work, but it might give you a good idea all of what's involved.
https://www.youtube.com/watch?v=661ov4GIXAA
usually when i watch youtube videos before tearing something down, i take them with a grain of salt... maybe find someone that's done a writeup or watch a couple to confirm.
don't forget to take pictures when you tear it down so you can remember 2 weeks later when your junk comes back from the shop all clean and looking totally different.
based on my crude understanding of whats involved in these things its probably a 2/5 for difficulty. i bet you can figure it out!