The printer's package contains a lubricant, which is intended for maintenance. No need to use it now the bearings are lubricated. There is a dedicated online manual on how to clean the printer and apply the lubricant. See help.prusa3d.com/maintenance-tips
No soldering is required.
No wire crimping is required.
Step 2 - Labels guide
All the boxes and bags including parts for the build are labelled.
Number (or numbers) in the header tells you for which chapter you'll need that bag (or box).
Step 3 - Use labels for reference
Most of the labels are scaled 1:1 and can be used to identify the part :-)
For the most common screws, nuts and PTFE tubes. You can also use the enclosed letter, which contains Prusa Cheatsheet on the other side.