Took me about 45 minutes.
Couple of complexities:
1. The speaker removal, it’s easier just to unscrew and pull out that way. Moreover, it’s easier the same way to replace, the problem is if you push in the speakers can remain wobbly unless you properly attach to the flexible plastic things.
2. When replacing the screws on the battery, do the little screw first. It shows it on the images, but doesn’t mention it, it’s a different sized screw (step 3).
3. Removing the screws on the back of the laptop is tough unless you have a good screw driver. In the end, I bought one from China from Aliexpress that was bang on what I needed.